1.  LDS.  Family Search: Internet Genealogy Service: IGI - International Genealogical Index (online at FamilySearch.org).

Edward Francis SEARLE Birth: 04 Jul 1841, Methuen, Essex, Massachusetts Father: Jesse G. SEARLE; Mother: Sarah Source: Vital Records of Methuen, Massachusetts, to the End of the Year, 1849. Topsfield Historical Society (1909, Topsfield, Massachusetts).

Edward F. SEARLES Birth: 04 Jul 1841, Methuen, Essex, Massachusetts; Death: 06 Aug 1920 Father: Jesse Searles; Mother: Sarah LITTLEFIELD Source: patron submission

2.  1850 Census Every-Name-Index/Images (online at Ancestry.com):  Edwd. F. SEARLES (æ 8, b. MA) is living in Methuen, Essex Co., MI, with his widowed mother and brother (q.v.).

3.  1860 Census Every-Name-Index/Images (online at Ancestry.com):  Edward F. SEARLS (æ 19, b. MA; shoemaker) is living in Methuen, Essex Co., MI, with his widowed mother (q.v.).

4.  1870 Census Every-Name-Index/Images (online at Ancestry.com):  can't find.  He should be in Boston, MA.

5a.  Committee of One Hundred on Democratic Re-Organization.  1881.  List of Registered Voters in the City of New York, for the Year 1880.  Martine B. Brown, Printer and Stationer, New York (online at Ancestry.com):

p. R11-1	Eleventh Assembly District. SECOND ELECTION DISTRICT. Boundaries:  West 26th street, East 26th street, 4th avenue, East 23d street, and Broadway...
p. R11-2	MADISON AVE....   No. 25...     Edward F. Searles...

5b.  1880 Census Every-Name-Index/Images (online at Ancestry.com):  can't find.  He should be in New York City, NY (see previous Source).  I went to the census and viewed the residents at 25 Madison Ave., New York City, which is called the "Madison Apartment House" (Roll 880, ED 278, pp. 88A-88B), but could not find Edward.  I did find several of the males who were registered to vote at that address along with him, so I definitely found the correct address.  The census was enumerated on 4 Jun 1880, so perhaps he hadn't moved in yet — or had moved out by 1 Jun 1880, the official enumeration date of the 1880 census.  It's also possible he was simply missed by the enumerator.

6.  1890 Census:  the 1890 Census Population Schedules were destroyed.

7.  1900 Census Every-Name-Index/Images (online at Ancestry.com, Image #51 of 51):  East St., Methuen, Methuen Town[ship], Essex Co., MA, Roll T623_646, p. 297B, SN 24B, SD 115, ED 410, enumerated 30 Jun 1900, official enumeration date 1 Jun 1900 (extracted by Diana Gale Matthiesen):

1900:  for an explanation of the column headings, please see What the Numbers in the Federal Census Mean (missing columns contained no data).

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

22

23

24

25

26

27

*

X

494

547

Searles Edward F

Head

W

M

Jul 1841

58

Wd

MA

NH

NH

Capitalist

0

Y

Y

Y

O

F

H

Bell Abraham

Secretary

W

M

Jan 1835

65

M

43

MA

MA

MA

Private Sec'y

0

Y

Y

Y

Woodbridge Mary J

Servant

W

F

Aug 1849

50

Wd

2

1

MEX

MEX

MEX

1883

17

Cook

0

Y

Y

Y

OBrien Catherine

Servant

W

F

Sep 1875

24

S

MA

IRL

IRL

Waitress

0

Y

Y

Y

Connolly Jennie

Servant

W

F

Jul 1874

25

S

IRL

IRL

IRL

1898

2

Kitchen Maid

Y

Y

Y

Hafto Thomas

Servant

W

M

Jun 1871

28

S

JAP

ENG

JAP

1890

10

Na

Servant

Y

Y

Y

*East St

8.  1910 Census Every-Name-Index/Images (online at Ancestry.com, Image #14 of 14):  Windham Twp., Rockingham Co., NH, Roll T624_866, p. 210B, SN 9B, SD _, ED 274, enumerated 2 May 1910, official enumeration date 15 Apr 1910 (extracted by Diana Gale Matthiesen):

1910:  for an explanation of the column headings, please see What the Numbers in the Federal Census Mean (missing columns contained no data).
1	2	3	4	5	6	7	8	12	13	14	17	18	23	24	26	27	28	29
166	169	Searles Edward F	Head	M	W	68	Wd	MA	NH	NH	Eng	Own Income	Y	Y	O	F	F	101

Apparently he's living at Searles Castle in Windham while it was still under construction (the building was completed in 1915).

9.  1920 Census Every-Name-Index/Images (online at Ancestry.com):  can't find.

10.  Searles Castle at Windham: a Brief History (online at www.searlescastlewindham.com).

11.  Edward Francis Searles (online at Find-a-Grave.com):  includes biographical sketch and photos.

12.  Edward Francis Searles (online at Wikipedia.com).