1.  Marriage Record:

2.  1850 Census Every-Name-Index/Images (online at Ancestry.com, Image #36 of 80):  Newfane, Niagara Co., NY, Roll M432_561, p. 387B/774, 236/242, enumerated 16 Aug 1850, official enumeration date 1 Jun 1850 (extracted by Diana Gale Matthiesen):

Christopher Kill	22	M		F	1500	NY
Electa       "	22	F				"
Hesian Worden	12	M				"

Listed six households from Christopher's parents, Jasper & Milean (JONES) KILL.

3.  1860 Census Every-Name-Index/Images (online at Ancestry.com, Image #2 of 20):  Castleton P.O., Castleton [Twp.], Barry Co.., MI, Roll M653_536, p. 846, PN 222, 1772/1658, enumerated 10 Aug 1860, official enumeration date 1 Jun 1860 (extracted by Diana Gale Matthiesen):

Christopher Kiler	33	M		Farmer	4800	3963	NY
Electa	33	F					do
Ida	4	F					Mich
Miriam	1	M					do
Mary Brown	65	F					NY
Ruben Bivens	15	M					Mich
Mirean Kiler	22	F					NY

Mary is Electa's mother; Mirean is Christopher's sister; Reuben's relationship unknown.

4.  1870 Census Every-Name-Index/Images (online at Ancestry.com, Image #1 of 28):  Nashville P.O., Castleton Twp., Barry Co., MI, Roll M593_661, p. 93A, PN 1, 6/6, enumerated 1 Aug 1870, official enumeration date 1 Jun 1870 (extracted by Diana Gale Matthiesen):

Kill Christopher	43	M	W	Farmer	13000	3000	New York
Do  Electa Ann	42	F	W	Keeps house			Do
"   Ida	14	M	W	Attending school			Michigan
"   Myra	11	M	W				Do
"   Valeria	8	M	W				"

5.  1880 Census Every-Name-Index/Images (online at Ancestry.com, Image #23 of 50):  Castleton [Twp.], Barry Co., MI, Roll T9_570, p. 148C, PN 23, SD 2, ED 42, enumerated 7 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	13	24	25	26
250	257	Kill Christopher	W	M	53			/	Farmer	NY	NY	NY
		____ Electa A	W	F	53	Wife		/	Keeping House	NY	CT	CT
		____ Valerier?	W	M	18	Son	/		At Home	MI	NY	NY

Listed four households from Electa's nephew, Columbus PRICE, son of her sister, Clarissa (BROWN) PRICE.

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

7.  1900 Census Every-Name-Index/Images (online at Ancestry.com, Image #10 of 25 — indexed "Christy"):  Castleton Twp., Barry Co., MI, Roll T623_700, p. 135B, SN 10, SD 4, ED 38, enumerated 20 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	19	22	23	24	25	26	27	28
251	252	Kill Christopher	Head	W	M	Feb 1827	73	M	50			NY	Unk	Unk	Farmer	Y	Y	Y	O	F	F	198
		"  Electa A	Wife	W	F	Nov 1827	72	M	50	4	2	NY	MA	NY		Y	Y	Y

Electa has it backwards: her father was born in NY and her mother was born in MA, but at least she's closer than in 1880.

8.  WorldConnect / Ancestry World Trees (online at RootsWeb.com/Ancestry.com).  A file online there cites these sources:

Microfilm Roll: Barry County Deaths; Books A & B; Liber/Page: B-179; Entry: 2940; Date: May 27, 1907; Name: Christopher Kill; Sex: Male; Color: White; Martial Status: Married; Age: Years: 80; Months: 3; Days: 9; Place of Death: Castleton; Cause of Death: La Grippe; Birthplace: New York; Occupation: Farmer; Father: Jasper Kill; Residence: Unknown; Mother: Miram (sic) Jones; Residence: Unknown; Date of Record: June 4, 1907

Microfilm Roll: Barry County Deaths; Books A & B; Liber/Page: B-179; Entry: 2937; Date: May 22, 1907; Name: Electa A. Kill; Sex: Fem.; Color: White; Martial Status: Married; Age: Years: 79; Months: 6; Days: ; Place of Death: Castleton; Cause of Death: Broncho Pneumonia; Birthplace: New York; Occupation: Housewife; Father: Joel Brown; Residence: Unknown; Mother: Mary Fuller; Residence: Unknown; Date of Record: June 4, 1907

9.  Lakeview Cemetery, Castleton Township, Barry County, Michigan (online at Interment.net; contributed by Sara Colburn):

Kill, Christopher, b. 1827, d. 5/27/1907

Kill, Electa A., b. 1827, d. 5/22/1907

10.

Kill, Valiera P., 33yrs 3mos 17dys, d. 5/24/1894

Kill, Mary M., 29yrs, d. 6/16/1889, wf of Valiera