Nancy K. Slater, daughter of Sarah (née Delbridge) and John H. Slater, was born in 1841 in Indiana, probably in Tippecanoe County, where her parents married in 1834 and Slater household was enumerated in 1840. The Slater family moved in 1845 to Cedar County, Iowa Territory.

Nancy "E." Slider and Geo. "Sumnermaker" were married on 11 July 1863 in Cedar County.

"Mrs. Nancy K. Simmermaker wife of George Simmermaker died Thursday afternoon, August 6, 1908. While she had been in poor health for more than a year, yet her last illness was of short duration.
"Nancy K. Slater was born in the state of Indiana March 22, 1841. She was married July 1863 to Geo Simmermaker. To this union was born one daughter, Mrs. E. W. Carl, who preceded her mother into the other world, passing from this life September 9, 1903.
"Mr. Simmermaker who is now in his 87 years is left together with four daughters, children of his first wife, to mourn the departure of the deceased.
"The funeral services were held at the home in Tipton August 8th, W. Rollin McCaslin of the Presbyterian church officiating, assisted by John N. Naly of the Reformed church. Interment was at the Masonic cemetery." (Tipton Advertiser, Tipton, Iowa, 13 Aug 1908.)

Notes

1840 U.S. Census, Shelby Twp., Tippecanoe Co., Indiana; p. 510 (written).
[13.] John "Slider."

1850 U.S. Census, Rochester Twp., Cedar Co., Iowa; dwelling 158, family 158, lines 40-42 and 1-6, pp. 21-22 (written), 3 Sep 1850.
40. John Slater, 37, farmer ($750), Ohio.
41. Sarah -----, 32, Ohio.
42. Jas. -----, 14, Ind.
1. Saml. Slater, 12, Ind.
2. Mary E. -----, 11, Ind.
3. Nancy -----, 9, Ind.
4. Emily -----, 5, Iowa.
5. Sarah E. -----, 1, Iowa.
6. Elizabeth Delbridge, 80, Va.

1860 U.S. Census, Rochester Twp., Cedar Co., Iowa; dwelling 138, family 645, lines 16-25, p. 92 (written), 27 Jun 1860.
16. John Slater, 46, farmer ($1,200; $800), Ohio.
17. Sarah Slater, 44, Ohio.
18. Samuel Slater, 22, farm laborer, Indiana.
19. Mary E. Slater, 21, Indiana.
20. Nancy F. Slater, 19, Indiana.
21. Emily C. Slater, 15, Iowa.
22. Sarah E. Slater, 10, Iowa.
23. Eliza J. Slater, 7, Iowa.
24. Melissa A Slater, 5, Iowa.
25. Catharine Slater, 72, Kentucky.

"Iowa, Marriages, 1809-1992," index, FamilySearch (https://familysearch.org/pal:/MM9.1.1/XJLX-XYC : accessed 27 Aug 2014), Geo. Sumnermaker and Nancy E. Slater, 11 Jul 1863; citing Cedar Co., Iowa, reference 2:3RBQ12B; FHL microfilm 0986805.

1870 U.S. Census, Rochester Twp., Cedar Co., Iowa; dwelling 102, family 104, lines 37-40 and 1-2, p. 337B (printed), p. 14 (written), 11 Aug 1870.
37. Zimmermaker, Geo. [head], 43, farmer, Germany.
38. ----- Nancy K., 29, house keeper, Indiana.
39. ----- Mary B., 19, Ohio.
40. ----- Anna E., 17, Ohio.
1. ----- Sarah, 16, Ohio.
2. ----- Eva M. 6, Iowa.

1900 U.S. Census, E.D. 24, Tipton, Center Twp., Cedar Co., Iowa; dwelling 341, family 343, lines 18-19, p. 43 (printed), p. 15A (written), 9 Jun 1900.
18. Simmermaker, Geo., head, May 1827, 73, married 27 years; self and parents born in Germany; immigrated in 1835, resident of the U.S. 65 years, naturalized.
19. ----- Nancy, wife, Mar 1840, 60, married 27 years, 1 child (living); self and parents born in Ind.

dob, dod, and place of burial from Works Projects Administration Graves Registration Survey.

Reviewed 6 January 2020.