While researching funeral cards from time of death to present day, I find that the location where the card for sale is a very important clue. In March 2010, eBay seller, "debbideals" promotes the funeral card, Mrs. Edward Crosell (sic). The auction information indicates the card is located at Evansville, Indiana. This hint allows the researcher to focus on one of three possible general search returns of Edward Croxall. July 1870, we find Edward P. Croxall, wife Josephine and children; Blanche S. and Florence D. Croxall residing at New Albany, Floyd, Indiana. The following census of June 1880, Edward Croxall, his wife, Josephine and children; Blanche, Florence, Julius, James are residing at New Albany, Floyd County, Indiana.
Valienteagle's "Jones Family Tree" and CHuxton's "CCroston Master 07 2009 Family Tree" have Edward Palmer Croxall as son of James Croxall and Aglae Dubocq. Neither family tree has followed Edward Croxall's descendants. It may be time to see if the researchers are interested.