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

Peter REAMER; Husband Age at Marriage: 51 Marriage:  11 Nov 1869, Calhoun, Michigan Spouse: Rachel Sylva JUCKETT Source: Marriage Records, 1836-1943. Calhoun County (Michigan). County Clerk

Peter REANUE; Birth: New York Marraige: 11 Nov 1869, Albion, Calhoun, Michigan Rachel S. FORDHAM or JUCKETT; Birth: New York Source: "Extracted marriage record for locality listed in the record."

2.  1840 Census Index/Images (online at Ancestry.com):  not found, at least not in Livingston Co., NY, or under any spelling that appeared close and that I could find.

3.  1850 Census Every-Name-Index/Images (online at Ancestry.com, Image #29 of 66):  Town[ship] of Springwater, Livingston Co., NY, Roll M432_525, p. 244A, 210/214, enumerated 17 Oct 1850, official enumeration date 1 Jun 1850 (extracted by Diana Gale Matthiesen):

Peter Remer	32	M		Waggon Maker	400	NY
Betsey   "	26	F				"
Esther   "	8	F				"
Juliette "	3	F				"

4.  1860 Census Every-Name-Index/Images (online at Ancestry.com, Image #10 of 13):  Jonesville P.O., Fayette Twp., Hillsdale Co., MI, Roll M653_543, p. 701, PN 81, 590/591, enumerated 10 Jul 1860, official enumeration date 1 Jun 1860 (extracted by Diana Gale Matthiesen):

Peter Reamer	42	M		Wagon Maker	500	50	NY
Esther   "	19	F					Do
Juliett  "	10	F					Do
Francis  "	10	F					Do
Arthur	7	M					Do

Juliett and Francis are labeled, "Twins."

5.  1870 Census Every-Name-Index/Images (online at Ancestry.com, Image #16 of 61):  Albion P.O., Albion Twp., Calhoun Co., MI, Roll M593_666, p. 345B, PN 16, 128/130, enumerated 25 Jun 1870, official enumeration date 1 Jun 1870 (extracted by Diana Gale Matthiesen):

Reamer Peter	53	M	W	Wagon Maker	1300	200	New York
______ Sylvia	41	F	W	Keeping House			New York
______ Frances	19	F	W	Without Occupation			New York
Fordham Arlina	10	F	W				Michigan

Arlina is Sylvia's daughter from her prior marriage.

6.  1880 Census Every-Name-Index/Images (online at Ancestry.com, Image #33 of 59):  Albion, Calhoun Co., MI, Roll T9_574, p. 17A, PN 33, SD 1, ED 39, enumerated 12 Jun 1880, official enumeration date 1 Jun 1880 (extracted by Diana Gale Matthiesen):

1880:  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

8

9

10

11

13

24

25

26

372

391

Reamer Sylva

W

F

52

/

Carpet M???

NY

NY

NY

______ Charles

W

M

28

Son

/

Farm Hand

MI

MI

NY

______ Jas F

W

M

32

Son

/

Farm Hand

MI

MI

NY

Nerdham Almeta

W

F

26

Niece

/

MI

NY

NY

_______ Edgar

W

M

6

Son

/

NE

Eng

MI

391

Juckett George

W

M

24

/

Laborer

MI

NY

MI

_______ Laura

W

F

20

Wife

/

MI

NY

NY

I'd be very surprised if the FORDHAM "sons" would have adopted surname REAMER, so it's likely their surname here is enumerator error.  I can't find George JUCKETT (or variation) in 1870 or 1860, so I don't know how he is related to Sylvia.  Sylva's niece is Almeda (KELLICUT) NEEDHAM, widowed daughter of Sylvia's late sister, Ann (JUCKET) KELLICUT.

7.  1890 Census:  the 1890 Census Population Schedules were destroyed.

8.  1900 Census Every-Name-Index/Images (online at Ancestry.com):

9.  WorldConnect / Ancestry World Trees (online at RootsWeb.com/Ancestry.com).  A file there shows Peter with a third wife, name unknown, between Betsy and Sylvia, but I don't see any basis for it.