1.  Marriage Record:

2.  1790 Census Images (online at Ancestry.com, Image #4 of 6; extracted by Diana Gale Matthiesen):¤•

1790

NH

Rockingham Co.

Pittsfield Twp.

p. 166

Ln. 8

Benj'n Sias Junr

1-0-0-0-0

These data indicate:

Gender and Type	Age Class	Therefore Born	Individuals Inferred
1 free white male	16 or over	in or bef. 1774	= Benjamin (b. ca. 1768)

3a.  Census Index:  U.S. Selected Counties, 1800 (Broderbund CD-312).  Please see my WARNING regarding use of this database (the numerical data have the genders switched — I have specifically checked Caledonia Co.). 

1800

Sias, Benjamin

VT

Caledonia Co.

Danville

20100-1001000

3b.  1800 Census Index/Images (online at Ancestry.com; Image #4 of 4; extracted by Diana Gale Matthiesen):¤•

1800

VT

Caledonia Co.

Danville

Roll 51

p. 253

Ln. 14

Sias Benjamin

10010-20100-00

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
1 male	9 or under	1790-1800	= Jeremiah (b. 1796)
1 male	26-44	1755-1774	= Benjamin (b. ca. 1768)
2 females	9 or under	1790-1800	= Achsah (b. 1800) = Abigail (b. 1798)
1 female	16-25	1774-1784	= Achsah (b. 1777)

4.  1810 Census Index/Images (online at Ancestry.com; Image #2 of 6; extracted by Diana Gale Matthiesen):¤•

1810

VT

Caledonia Co.

Danville

p. 150/339

Ln. 41

W. Axa Sias

21102-12210-00

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
2 males	9 or under	1800-1810	= Benjamin (b. ca. 1804) = William (b. 1802)
1 male	10-15	1794-1800	= Jeremiah (b. 1796)
1 male	16-25	1784-1794	= ?
2 males	45 or over	in or bef. 1765	= ? = ?
1 female	9 or under	1800-1810	= ?
2 females	10-15	1794-1800	= Achsah (b. 1800) = Abigail (b. 1798)
2 females	16-25	1784-1794	= ? = ?
1 female	26-44	1765-1784	= Achsah (b. 1777)

Our widow has a great many people living with her.  Are they kin?  Has she taken in boarders?

5.  1820 Census Index/Images (online at Ancestry.com; Image #2 of 5; extracted by Diana Gale Matthiesen):¤•

1820

NY

Jefferson Co.

Henderson Twp.

Roll 72

p. 419

Ln. 12

Achsa Sias

001200-00110-0-200

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
1 male	16-18	1801-1804	= Benjamin (b. ca. 1804)
1 male	19-25*	1794-1801	= Jeremiah or William
1 female	16-25	1794-1804	= Achsah or Abigail
1 female	26-44	1775-1794	= Achsah (b. 1777)
2	persons engaged in agriculture
*In the 1820 Census, the third column is age class 16-18 and the fourth column is age class 16-25; therefore, any individual in column three is duplicated in column four.  By subtracting the number in column three from the number in column four, you can create an age class "19-25."

6.  LDS.  Family Search: Internet Genealogy Service: International Genealogical Index (IGI):

Jeremiah SIAS Birth: 17 May 1796, Danville Twp, Caledonia, Vermont Father: Benjamin SIAS; Mother: Achsah Source: General index to vital records of Vermont, early to 1870. Vermont. Secretary of State.

Abagail SIAS Birth: 13 Apr 1798, Danville Twp, Caledonia, Vermont Father: Benjamin SIAS; Mother: Achsah Source: General index to vital records of Vermont, early to 1870. Vermont. Secretary of State.

Achsah SIAS Birth: 19 Apr 1800, Danville Twp, Caledonia, Vermont Father: Benjamin SIAS; Mother: Achsah Source: General index to vital records of Vermont, early to 1870. Vermont. Secretary of State.

William SIAS Birth: 15 May 1802, Danville Twp, Caledonia, Vermont Father: Benjamin SIAS; Mother: Achsah Source: General index to vital records of Vermont, early to 1870. Vermont. Secretary of State.

Benj Franklin SIAS Birth: 10 Sep 1804, Danville Twp, Caledonia, Vermont Father: Benjamin SIAS; Mother: Achsah Source: General index to vital records of Vermont, early to 1870. Vermont. Secretary of State.

7.  LDS.  Family Search: Internet Genealogy Service: Ancestral File.

8.  Descendants of John Sias Sr. by Garey L. Marshall.