For people wishing to discover more about their Canadian and Croatian family roots, Grant has provided genealogy services. For English speakers, he wrote Finding Your Italian Ancestors tracing family records in Italy. It was written for Heritage Productions and went through two editions. He has also written about the Mississauga's of Balsam Lake tracing present-day families back to their aboriginal roots in the 18th Century. He edits the Croatian Genealogy newsletter and continues to be contacted by people seeking information about their ancestors.