Daughter of Joseph Seeney and Sarah Ann Durham
Born ca. 1906 in Dover, Kent Co., Delaware

Rennie's age in the census records: in 1910, age 4; in 1920, age 14.
In 1920 Rennie resided in the household of Frederick H and Hester (Dean) Seeney, her paternal uncle and aunt.

1910 - U.S. Census, Delaware, Kent Co., R.D. 4-E.D. 1, E.D. 7, Sheet No. 15B [=122 verso], 155-156, 02 May 1910
1920 - U.S. Census, Virginia, Alexandria Co., Alexandria, Ward 3, E.D. 7, Sheet No. 6B [=215 verso], 133-139, Mushpot Road, 03 Feb 1920