Thank you. I'm not in contact with anyone - 20 years ago after my aunt died, my mother did try to find her husband's wife's family, and I thought she had - but if she did, she either had duplicates of the information or didn't send it to them, because I've still got a lot of stuff! So I do at least have a couple of relatively recent names to look for now. I'm suspecting that perhaps the descendants may not have a lot of interest in genealogy - there is nothing on the family names here on Wikitree, and the only information on FamilySearch has been added via "official" documents (death certificates, census records, etc) with no profile manager listed. I do appreciate your suggestions - I'll definitely check out the Facebook group.