On September 18, 1919 the Homestead Hebrew Congregation purchased 2.3 acres of land adjoining the original cemetery for $1500 from Jacob F. and Honora M. Weber. You can read the whole deed in this PDF.
Note this worrying clause:
SAVING and excepting unto John Munhall, William Munhall, Anna M. Munhall and Robert J. Munhall, Administrators, of Michael Munhall, their heirs and assigns thereout, all the coal in and undersaid (sic?) land, together with the right to enter, dig, mine, carry away all of said coal without any liability for support, of or damage to the surface or anything on it, and the right to transport other coal through and under said land and with all the other usual mining rights.
This map shows how the new ground expanded the cemetery.