My great, great, great grandfather, John Showalter, had a brother, Jonathan.
The following is information copied directly from documents Ithat were passed down in my family to me.
Jonathan Showalter b. Dec 20, 1809 lived near Belleville, Mifflin County, PA or Paintersville, md Mary Shirk a sister of John, Michael, Sam and Jacob Shirk. She was b. June 22, 1815 and lived about 12 miles from Lewistown.
He had a sister, "Catherine Showalter, 'Betsy' probably Elizabeth, married Michael Shirk, she is buried Aaronsburg Centre Co. Pa."
He had a sister "Lydia Showalter, b Sept. 25, d Apr, 1899, buried at Dunkard Church Hartley Twp. Married John Shirk. Lived in Hartly Twp. on Laura Glover's farm East of Laurelton Pa."
John Showalter's ancestery is in my family tree (Brindel).