David H. Kollock and his son, Burton J. ran a funeral home in Philadelphia.Here is a source of information I found on it:
http://www.libertynet.org/gspa/other1.htmlhttp://www.libertynet.org/gspa/other1.html --under Genealogical Society of Penn. Library MICROFILM HOLDINGS OF THE GSP: BIBLE RECORDS, GENEALOGIES, FUNERAL HOME RECORDS:
David H. Kollock Funeral Home Funeral Home Philadelphia PA
2. source: Vol II of FTM CD # 213, "1895-1995 PA Genealogical Records" The Pennsylvania Genealogical Magazine, Volumes 1-39
Image of vol XXV under Genealogical Accessions (Jan ’66 thru Jan ’67) by the Genealogical and Historical Society
Kollock:Funeral records 1832 – 1901 of David H. and Burton J. Kollock (21 vols) 706 S. 2nd St, Phila. PA originals courtesy of David Hall Kollock III.