1.  Marriage Record:

2.  1860 Census Every-Name Index and Images (online at Ancestry.com, Image #4 of 137):  Greensburgh P.O., Hempfield Twp., Westmoreland Co., PA, Roll M653_1195, p. 385, PN 47, 325/325, enumerated 13 Jun 1860, official enumeration date 1 Jun 1860 (extracted by Diana Gale Matthiesen):

Jackson Baker	28	M		Carpenter	800	200	Pennsylvania
Sarah A "	25	F					"
Ada N "	4	F					"
Mary J "	2	F					"
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Hannah E Baker	1	F					Pennsylvania

3.  1870 Census Every-Name-Index/Images (online at Ancestry.com, Image #8 of 140):  Greensburg P.O., Hempfield Twp., Westmoreland Co., PA, Roll M593_1465, p. 250B, PN 8, 59/56, enumerated 4 Jun 1870, official enumeration date 1 Jun 1870 (extracted by Diana Gale Matthiesen):

Baker Jackson	43	M	W	House Carpenter	2000	800	Pennsylvania
_____ Sarah A	34	F	W	Keeping House			"
_____ Adda A	14	F	W				"
_____ Mary J	12	F	W				"
_____ Hannah E	10	F	W				"
_____ William	9	M	W				"

Listed three households from Jeremiah HAMMER (æ 50, b. PA, wife Margaret).

4.  1880 Census (indexed at FamilySearch.org; page image online at Ancestry.com, Image #5 of 51):  Franklin Twp., Jackson Co., KS, Roll 383 (Book 1), p. 119A, PN 5, SD 7, ED 108, enumerated 2 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).
3	4	5	6	8	9	10	13	24	25	26
Baker Gackson	W	M	54			/	Carpenter	PA	PA	PA
_____ Sarah	W	F	46	Wife		/	Keeping House	PA	PA	PA
_____ William	W	M	19	Son	/		Laborer	PA	PA	PA
_____ Jesse	W	F	8	Dau	/			PA	PA	PA

This enumerator did not fill in Visitation numbers — or know how to spell, apparently.

5.  1890 Census:  the 1890 Census Population Schedules were destroyed.

6.  1900 Census Index/Images (online at Genealogy.com):  not found, and I really looked, including page-by-page checks of all three Wards of Holton.

7.  Broderbund.  World Family Trees.  Vol. 1, Pedigree #219.