The Rebound 1810 Census of Cayuga County, New York
I discuss the problem of rebound censuses on another page.  Sad to say, Cayuga County in 1810 (Roll M252-31) is one such afflicted county.  The problem is compounded by the pages being microfilmed as two-page spreads, instead of individually, because this is what places unrelated pages together in the same frame/image.

If the tables below look complicated, they are, but Ancestry.com (and Genealogy.com) could straighten this out, and the solution is much simpler than it was figuring out the problem and creating the tables.  Simply…

1.  Slice all the two-page spreads into single pages.
2.  Put the single pages in order by the 4-digit number written on each page.
3.  Regroup the pages by town, which would be a snap because now each town's pages would be contiguous with a clear start and end point (see Summary below).
That's all it would take.  Not only would this be a more accurate representation of the census, it would cut storage and bandwith requirements by 50%, not to mention making it easier for customers to use (in part by reducing the number of pages mis-linked from the index).  Most important of all, it would reduce the errors being made by those who are unaware of the problem.  If the reorganization isn't done, it would be far better if Ancestry.com and Genealogy.com would not group the images by town, but keep them together as a single group.  At least then it wouldn't delude people that the images are correctly grouped.
Summary of Pages
1096 - 1097 Header and Introduction
1098 - 1109 Town of Dryden
1110 - 1124 Town of Locke
1125 - 1144 Town of Sempronius
1145 - 1150 Town of Owasco
1151 - 1162 Town of Brutus
1163 - 1169 Town of Cato
1170 - 1176 Town of Mentz
1177 - 1210 Town of Aurelius
1211 - 1248 Town of Scipio
1249 - 1279 Town of Genoa
1280 - 1281 Tallies

"Towns" in Cayuga County are civil divisions equivalent to townships.  Several villages were enumerated within the towns, but I could only tell where they started, not where they ended, so I did not differentiate those pages in the tables below.  Each pair of pages had a subtotal, but the totals for each town were not at the end of each town, but at the end of the county as part of the final tally.

Genealogy.com and the Broderbund Census Index CD have the Cayuga County images ordered and indexed by the frame numbers of the microfilm, which has nothing to do with the page numbers on the census pages themselves.  Such a number is a bad choice to use as a "page number" because it will vary depending on the vendor supplying the microfilm, which is exemplified in this case because the "page" numbers given at Genealogy.com and on the Broderbund CD are "off" by one or two digits (at least on the names I checked).  The images at Genealogy.com begin with page [frame] 3 of the microfilm, which is the same census page as Image #1 in the Sempronius group at Ancestry.com, but I didn't want to complicate the table below by adding another set of "page" numbers to it. 

Ancestry.com has Cayuga County indexed by the actual four-digit census page numbers, which would make linking the index entries to the correct page so easy if they would just regroup the pages as above.  As it stands, many index entries are mis-linked, often to the right page, but in the wrong group.
Legend
"Groups" are the groups of images Ancestry.com.*

Img = Image number at Ancestry.com (each image is a two-page spread)
UL = whether the Upper or Lower page of the two-page spread
PN = small number in pen or pencil
CN = large number in what looks like crayon or grease pencil
Town = town name written on the page [or deduced]
*The group labeled, "Drydew," is simply a mis-reading of one page from Dryden.  The group labeled "Aurora" is the first page for Scipio, labeled there as "Town of Scipio, Village of Aurora," but as we can't tell where the village ends, I see no point in giving this one page a separate group, especially as is may mislead people into thinking only those listed on that one page live in Aurora, which may or may not be true.

The pattern here, due to the unfolding and rebinding, has resulted in two alternating sets of numbers proceeding from the header/intro page in the middle of the film, forward to the beginning of the film, with a turn-around in Sempronius, then back to the middle where the numbers then proceed to the end of the film, with a turn-around in Scipio, then back to the middle of the film where the sequence ends with the tally pages.  There's a gap in pagination between nos. 1185 and 1192 (in Aurelius) which is noted on the pages themselves (see below), so appears not to represent a loss of information, yet one has to wonder what was on pages 1186-1191.

 
Sempronius Group Owasco Group Brutus Group Locke Group Cato Group Mentz Group
Img UL PN CN Town Img UL PN CN Town Img UL PN CN Town Img UL PN CN Town Img UL PN CN Town Img UL PN CN Town
1 U 2 1142 Sempronius          
L   1139 [Sempronius] 
2 U 3 1140 Sempronius
L   1141 Sempronius
3 U   1138 Sempronius
L 4 1143 Sempronius
4 U 5 1144 Sempronius - End
L   1137 Sempronius
5 U   1136 [Sempronius] 1 U   1136 [Sempronius]
L 6 1145 Town of Owasco L 6 1145 Town of Owasco
  U 7 1146 MISSING HERE 2 U 7 1146 Owasco
L   1135 MISSING HERE L   1135 Sempronius
6 U   1134 Sempronius 3 U   1134 Sempronius
L 8 1147 Owasco L 8 1147 Owasco
7 U 9 1148 Owasco 4 U 9 1148 Owasco
L   1133 Sempronius L   1133 Sempronius
8 U   1132 Sempronius 5 U   1132 Sempronius
L * 1149 Owasco L * 1149 Owasco
9 U 11 1150 Owasco - End 6 U 11 1150 Owasco - End
L   1131 Sempronius L   1131 Sempronius
10 U   1130 Sempronius   1 U   1130 Sempronius
L 12 1151 Town of Brutus L 12 1151 Town of Brutus
  U   1152 MISSING HERE 2 U 13 1152 Brutus
L   1129 MISSING HERE L   1129 [Sempronius]
11 U   1128 Sempronius   3 U   1128 Sempronius
L 14 1153 Brutus L 14 1153 Brutus
12 U 15 1154 Brutus 4 U 15 1154 Brutus
L   1127 Sempronius L   1127 Sempronius
13 U   1126 Sempronius   5 U   1126 Sempronius
L 16 1155 Brutus L 16 1155 Brutus
14 U 17 1156 Brutus 6 U 17 1156 Brutus
L   1125 Town of Sempronius L   1125 Town of Sempronius
    7 U   1124 Locke - End 1 U   1124 Locke - End
L 18 1157 Brutus L 18 1157 Brutus
8 U 19 1158 Brutus 2 U 19 1158 Brutus
L   1123 Locke L   1123 Locke
9† U   1122 Locke 3 U   1122 Locke
L 20 1159 Brutus L 20 1159 Brutus
U 21 1160 Brutus   U 21 1160 MISSING HERE
L   1121 Locke L   1121 MISSING HERE
10 U   1120 Locke 4 U   1120 Locke
L 22 1161 Brutus L 22 1161 Brutus
11 U 23 1162 Brutus - End 5 U 23 1162 Brutus - End
L   1119 Locke L   1119 Locke
  6 U   1118 Locke 1 U   1118 Locke
L 24 1163 Town of Cato L 24 1163 Town of Cato
7† U 25 1164 [Cato] 2† U 25 1164 [Cato]
L   1117 Locke L   1117 Locke
U   1116 Locke U   1116 Locke
L 26 1165 Cato L 26 1165 Cato
8 U 27 1166 Cato 3 U 27 1166 Cato
L   1115 Locke L   1115 Locke
9 U   1114 Locke 4 U   1114 Locke
L 28 1167 Cato L 28 1167 Cato
10 U 29 1168 Cato 5 U 29 1168 Cato
L   1113 Locke L   1113 Locke
11 U   1170 Town of Mentz       1170   1 U   1170 Town of Mentz
L 30 1111 Locke   30 1111   L 30 1111 Locke
12 U 31 1112 Locke 6 U 31 1112 Locke     31 1112  
L   1169 Cato - End L   1169 Cato - End     1169  
13 U   1110 Town of Locke   2 U   1110 Town of Locke
L 32 1171 Mentz L 32 1171 Mentz
  3 U 33 1172 Menta
L   1109 Dryden - End
4 U   1108 Dryden
L 34 1173 Mentz
5 U 35 1174 Mentz
L   1107 Dryden
6 U   1106 Dryden
L 36 1175 Mentz
7 U 37 1176 Mentz - End
L   1105 Dryden
*It looks like "11" on the page, but surely it was intended to be "10."
†Image is of two two-page spreads, with the bottom half of the bottom page cut off (not cut off at Genealogy.com).
 
Mentz Group Dryden Group Aurelius Group Genoa Group Scipio Group
Img UL PN CN Town Img UL PN CN Town Img UL PN CN Town Img UL PN CN Town Img UL PN CN Town
1 U   1170 Town of Mentz        
L 30 1111 Locke
    31 1112  
    1169  
2 U   1110 Town of Locke
L 32 1161 Mentz
3 U 33 1172 Mentz 1 U 33 1172 Mentz
L   1109 Dryden - End L   1109 Dryden - End
4 U   1108 Dryden 2 U   1108 Dryden
L 34 1173 Mentz L 34 1173 Mentz
5 U 35 1174 Mentz 3 U 35 1174 Mentz
L   1107 Dryden L   1107 Dryden
6 U   1106 Dryden   U   1106 MISSING HERE
L 36 1175 Mentz L 36 1175 MISSING HERE
7 U 37 1176 Mentz - End   U 37 1176 MISSING HERE
L   1105 Dryden L   1105 MISSING HERE
  4 U   1104 Dryden   U   1104 MISSING
L 38 1177 Town of Aurelius L 38 1177 Town of Aurelius
MISSING
  U 39 1178 MISSING HERE 1 U 39 1178 Aurelius
L   1103 MISSING HERE L   1103 Dryden
5 U   1102 Dryden 2 U   1102 Dryden
L 40 1179 Aurelius L 40 1179 Aurelius
6 U 41 1180 Aurelius   U 41 1180 MISSING HERE
L   1101 Dryden L   1101 MISSING HERE
  U   1100 MISSING HERE 3 U   1100 Dryden
L 42 1181 MISSING HERE L 42 1181 Aurelius
7 U 43 1182 Aurelius 4 U 43 1182 Aurelius
L   1099 Dryden L   1099 Dryden
8 U   1098 Town of Dryden 5 U   1098 Town of Dryden
L 44 1183 Aurelius L 44 1183 Aurelius
    45 1184   6 U 45 1184 Aurelius
    1097   L   1097 intro page
9 U   1096 header page   U   1096 MISSING HERE
L 46 1185 Aurelius L 46 1185 MISSING HERE
  A note on p. 1185 says,
"Continued on page 1191."
But the next page on the film
(which can be gone through
page-by-page at Genealogy.com)
is 1192, on which it says,
"continued from page 1185."
If Aurelius was, indeed,
continued on page 1191,
then that page appears to be lost.
And, of course, one wonders what
was on pp. 1186-1191.		 7 U 51 1192 Aurelius
L   1281 Tally of Towns
8 U   1280 Tally of Factories
and Manufactures
L 52 1193 Aurelius
9 U 53 1194 Aurelius 1 U 53 1194 Aurelius
L   1279 Genoa - End L   1279 Genoa - End
10 U   1278 Genoa 2 U   1278 Genoa
L 54 1195 Aurelius L 54 1195 Aurelius
11 U 55 1196 Aurelius 3 U 55 1196 Aurelius
L   1277 Genoa L   1277 Genoa
12 U   1276 Genoa 4 U   1276 Genoa
L 56 1197 Aurelius L 56 1197 Aurelius
13 U 57 1198 Aurelius 5 U 57 1198 Aurelius
L   1275 Genoa L   1275 Genoa
14 U   1274 Genoa 6 U 1274 Genoa
L 58 1199 Aurelius L 58 1199 Aurelius
15 U 59 1200 Aurelius 7 U 59 1200 Aurelius
L   1273 Genoa L   1273 Genoa
16 U   1272 Genoa 8 U   1272 Genoa
L 60 1201 Aurelius L 60 1201 Aurelius
17 U 61 1202 Aurelius 9 U 61 1202 Aurelius
L   1271 Genoa L   1271 Genoa
18 U   1270 Genoa 10 U   1270 Genoa
L 62 1203 Aurelius L 62 1203 Aurelius
19 U 63 1204 Aurelius 11 U 63 1204 Aurelius
L   1269 Genoa L   1269 Genoa
20 U   1268 Genoa 12 U   1268 Genoa
L 64 1205 Aurelius L 64 1205 Aurelius
21 U 65 1206 Aurelius 13 U 65 1206 Aurelius
L   1267 Genoa L   1267 Genoa
22 U   1266 Genoa 14 U   1266 Genoa
L 66 1207 Aurelius L 66 1207 Aurelius
23 U 67 1208 Aurelius 15 U 67 1208 Aurelius
L   1265 Genoa L   1265 Genoa
24 U   1264 Genoa 16 U   1264 Genoa
L 68 1209 Aurelius L 68 1209 Aurelius
25 U 69 1210 Aurelius - End 17 U 69 1210 Aurelius - End
L 1263 Genoa L   1263 Genoa
  18 U 1262 Genoa   U   1262 MISSING
L 70 1211 Town of Scipio L 70 1211 Town of Scipio
MISSING HERE
19 U 71 1212 Scipio 1 U 71 1212 Scipio
L   1261 Genoa L   1261 Genoa
20 U   1260 Genoa 2 U   1260 Genoa
L 72 1213 Scipio L 72 1213 Scipio
21 U 73 1214 Scipio 3 U 73 1214 Scipio
L   1259 Genoa L   1259 Genoa
22 U   1258 Genoa 4 U   1258 Genoa
L 74 1215 Scipio L 74 1215 Scipio
23 U 75 1216 Scipio 5 U 75 1216 Scipio
L   1257 Genoa L   1257 Genoa
24 U   1256 Genoa 6 U   1256 Genoa
L 76 1217 Scipio L 76 1217 Scipio
25 U 77 1218 Scipio 7 U 77 1218 Scipio
L   1255 Genoa L   1255 Genoa
26 U   1254 Genoa 8 U   1254 Genoa
L 78 1219 Scipio L 78 1219 Scipio
27 U 79 1220 Scipio 9 U 79 1220 Scipio
L   1253 Genoa L   1253 Genoa
28 U   1252 Genoa 10 U   1252 Genoa
L 80 1221 Scipio L 80 1221 Scipio
29 U 81 1222 Scipio 11 U 81 1222 Scipio
L   1251 Genoa L   1251 Genoa
30 U   1250 Genoa 12 U   1250 Genoa
L 82 1223 Scipio L 82 1223 Scipio
31 U 83 1224 Scipio 13 U 83 1224 Scipio
L   1249 Town of Genoa L   1249 Town of Genoa
  14 U   1248 Scipio - End
L 84 1225 Scipio
15 U 85 1226 Scipio
L   1247 Scipio
16 U   1246 Scipio
L 86 1227 Scipio
17 U 87 1228 Scipio
L   1245 Scipio
18 U   1244 Scipio
L 88 1229 Scipio
19 U 89 1230 Scipio
L   1243 Scipio
20 U   1242 Scipio
L 90 1231 Scipio
21 U 91 1232 Scipio
L   1241 Scipio
22 U   1240 Scipio
L 92 1233 Scipio
23 U 93 1234 Scipio
L   1239 Scipio
24 U   1238 Scipio
L 94 1235 Scipio
25 U 95 1236 Scipio
L   1237 Scipio

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