IRA LEWIS HAMMER was born March 9, 1823 in Jefferson County, Tennessee, and died in 1880 in Jefferson, TN. He married SARAH HACKNEY November 25, 1843 at the Quakers’ Lost Creek meeting hall in Jefferson County, TN, daughter of AARON HACKNEY and JANE JONES. She was born March 17, 1825 in Blount County, TN. and died March 11, 1896 in Tennessee. Ira, Sarah, and five of their seven children died of tuberculosis.
Info: Brothers Seth, Jesse and Ira Hammer married sisters Elizabeth, Lucinda and Sarah Hackney, respectively, daughters of Aaron Hackney and Jane Jones. Seth married Elizabeth Nov. 6, 1841. Jesse married Lucinda May 1, 1841. Ira married Sarah Nov. 25, 1843.

Sarah Hackney 1825-1896

Obituary for Sarah Hammer, The Newton Record, Friday, March 27, 1896, Page 1, Column 6:
Relatives have received word of the death of Mrs. Sarah Hammer, which occurred in Friendsville, Tennessee, where she has resided for the past few years.
Her age was about seventy-five years.
She was the widow of Ira Hammer, and they were well known by the older residents of the Adamson Grove vicinity. Her disease was consumption from which she had been suffering for many years.
Her husband, five children and one grandchild died of the same disease, and her only remaining descendants now are one grandchild and two great-grandchildren. ~ http://iagenweb.org/boards/jasper/obituaries/index.cgi?review=33315

Children of IRA HAMMER and SARAH HACKNEY are:
I. AARON FRANCIS HAMMER, b. Oct. 27, 1844, d. Nov. 25, 1844.
ii. MARY JANE HAMMER, b. Oct. 13, 1845, Tennessee. She married Daniel Wheatcraft and had two children.
iii. ELISHA HAMMER, b. Dec. 7, 1847, Ia, d. Jan. 30, 1868, Jasper Co., Ia., buried in Center Friends Cemetery, Amboy, Ia.
iv. RACHEL ANN HAMMER, b. Jan. 25, 1850, d. Feb. 24, 1871, Jasper Co., buried in Center Friends Cemetery, Amboy, Ia. She married Thomas Lowery.
v. HENRY LEWIS HAMMER, b. July 4, 1852, d. April 11, 1872, Jasper Co., Iowa. buried in Center Friends Cemetery.
vi. NANCY ELIZABETH HAMMER, b. July 8, 1854, d. May 13, 1856, Jasper Co., Iowa.
vii. ISABELL ELDORA HAMMER, b. March 28, 1858 Jasper Co., Iowa. Buried in Center Friends Cemetery.

Siblings (children of Rev. Elisha Hammer and Rachel Lewis, all born in Jefferson County, Tennessee):

• Mahlon Hammer 1811-1831
• Seth Hammer 1813-1881 https://www.findagrave.com/memorial/50299809
• Susannah Hammer 1815-1890 https://www.findagrave.com/memorial/50264164
• Henry Hammer 1817-1879 https://www.findagrave.com/memorial/50232492
• Jesse Hammer 1820-1873 https://www.findagrave.com/memorial/144433154
• Ira Lewis Hammer b. March 9 1823
• Lydia Hammer 1825-1827
• Elisha Hammer 1828-1907 https://www.findagrave.com/memorial/50235163
• Aaron Hammer 1831-1914 https://www.findagrave.com/memorial/50258321
• Mary Ann "Polly" Hammer Booth 1833-1874 https://www.findagrave.com/memorial/50296637
• Isaac Newton Hammer 1836-1862

Genealogy of the Maulsby Family. https://archive.org/details/genealogyofmauls1902payn/page/n7/mode/2up