Philip Derr and some of his descendants
By: Roy Henry Wampler.
Publisher: R.H. Wampler
Published: 1973
Place of publication: Rockville, Md. (263 Congressional Lane, Rockville 20852)
Language: eng
Number of pages: 24
Subjects: Derr family.; Maryland -- Genealogy.
Notes: Includes bibliographical references.
"27 July 1973."