The child actors are perfectly well known. They are Ida Mae McKenzie and Eunice Fay McKenzie (later better known just as Fay McKenzie). There was a third sister, Ella and the mother is Eva McKenzie and they were well-known vaudevillians besides their film careers (over 150 films for Eva according to her obituary). Fay McKenzie went on to partner cowboy Gene Autrey and, at the time of writing, is still alive (aged 100 this year).
Review of Just in Time
