Could Martha M. Allen, b.ca.1844 in the 1880 Ashtabula Fed. Census be the same Martha that you're seeking? I suspect that her maiden name was King. She married John W. Allen in Austinburg, Ashtabula County, Ohio around 1870. The 1880 census lists Martha Allen as being born in Ohio, her father born in Conn. and mother born in Ohio. Their children were Frank L., b. ca 1870, Letta F, B ca 1872, Fred King Allen, b. ca 1874, John WAllenn, Jr., b. ca 1873 and an infant b. ca 1879. John W. Allen's parents were also listed as settled in Austinburg. John, b. ca 1804 was born in Ireland. His wife, Fidelia (Wright?) was born in Ohio. They must have married ca. 1840 in Ohio. Let me know if you can verify any of this. I found this family on Ancestry but have no other supporting documents. thanks.

Mike Pearson