Their were at least two and possibly more Welty family lines in Frederick Co. in the 1700's and early 1800's. John Welty of Eppingen Germany first arrived and settled in the Emmittsburg area in northern Frederick Co. MD before the Rev. War. He was Catholic and many descendents are living there or are buried there.
John Welty married Polly Geesey on Aug. 15, 1842 at Graceham Moravian Church in Graceham, Frederick Co. MD. They had a son Jacob H. Welty b. 1847 who married A. Catherine Gesey b. 1851 on April 16, 1872 at Graceham. He was Reformed.
There were at least three and possibly four Weltys who fought in the Rev. War from Frederick and Baltimore Cos. My ancestor John Welty was one of them and was probably from northwestern Baltimore Co. in what is today Carroll Co. MD.