This week I received email messages from two distant relatives of my Broder family. The first, from Harry Coulter in Ireland let me know that, contrary to my assumption, Etta Coulter is alive and recently celebrated her 100th birthday! Good news! The second, from Robert Carter in Australia, provided some additional information about Essex Williams, my Gr-grandaunt Julia Broder's husband.
Thanks to Harry and Robert for this additional information.