Parents are assumed, but not confirmed, to be Joseph and Mary O.

Birth death data from tombstone in Keys Chapel Cemetery (RHS 7/18/2011)

1930 Census Liberty District 8, Fred. Co., MD, #227
New Windsor Road
lives on a farm, all can read and write
all MD,MD,MD
Charles C Key 38, married at 21, farm laborer
Martha M Key 36, married at 19
Charles C Key 15, farm laborer
Mary F Key 12
John V Key 10
Joseph D Key 8
Armelia E Key 6
Paul M Key 4 10/12
Thomas J Key 2 1/12

1920 Census, Liberty District 8, Fred. Co., MD, #192
Union Bridge Rd.
all can read and write
all MD,MD,MD
Charles C Key 25 (26?), rents, farm laborer
Martha M Key 24
James L Key 8
Charles F Key 5
Mary T Key 2

1900 Census, Linganore, Fred Co, MD #19
all MD,MD,MD
Joseph Key 32, Sep 1867, 32, M 12 yr, farm laborer, owns home
Mary O Key 26, May 1874, 26, M 12 yr, total 6 children, 5 living
Roxie S Key 11
Claonia A Key 9
Chas C Key 5
John W M Key 3
Aubrey B Key 1