You mentioned old City Directories. Did you mean that you checked the Wallingford directories? Wallingford has them on microfilm going back a number of years. I would think that if this family lived in Wallingford, they would be listed in the directories from the 50's. Are you sure it was Wallingford and not Southington? Southington is also part of the Meriden phone book (at least it is now, I don't know about during the 50's). good luck...