I can't perpetuate the notion her maiden name was Struman or Sturman without seeing some evidence to that effect. I can find no records for a Struman or Sturman family in Culpeper County, Virginia. I even wonder if the name Spilman might not have been misread for Sturman/Struman, since the Lears did live amongst and interact with the Spilman family, early Germanna immigrants.
Both John and Jemima would appear to have been living as of 22 Jan 1809, the date of daughter Lavina Lear's will, which made bequests to them.
1 Deed Books F-G, 1769-1775, Culpeper County, Virginia, FHL Film No. 30,945, Book G, Page 132.
2 Application for Membership to The National Society of the Daughters of the American Revolution, National Number 81395, submitted by Mildred Pamelia Dobson Cosgriff and approved 27 Sep 1910.
3 Will Book E, 1803-1809, Culpeper County, Virginia, FHL Film No. 30.932.
Personal Property Tax Books, 1803-1844, Culpeper County, Virginia, FHL Film No. 2,024,518.