cb apparently you have not done"extensive researching" as you claim. (Or you would find answers.) From "Epitaphs - Handbook of Historic Family Graveyards, Berks County, Pennsylvania." by Jacqueline B. Nein; Joan Texter and Cynthia Jimenez Pub: Berks Co. Assoc. for Graveyard Preservation, 4701 St. George St., Reading, PA 19606 - p.22:

Bixler: Bethel Twp. Pine Grove Road - Meckvill Road, on dirt lane Monument erected along lane (1985) by Bixler Descendants ...