I am working from a newspaper obit of my 3rd great grandmother which states that she was born Aug. 8, 1802 in Mercersburg, PA to John Snagleberger. Did Mercersburg exist in 1802? Could John Snagleberger be John Snowberger? Mary married John Steel abt. 1821. At some time they migrated to Preble Co., OH, where John Steel died in 1849 during the cholera epidemic. John and Mary had known children: William H.C. Steel, Ellen/Eleanor, Mary, Julia, Harrison.