Edna's mother was named as Rebecca in many news reports. She was 83 years old in September of 1923.
Rebecca Newcommer waited for news at the home of her sister, Mrs Frank Blaker, Russell avenue, Kenmar.
A photo shows a younger Edna Newcomer, listed as the grandaughter of Rebecca, waiting by the radio for news. There's no mention of Edna having a daughter sharing her name, so this is likely a niece of the Edna who made the flight.
[Birth record for Edna Newcomer, 1910, lists William & Mimi as parents]
Asher M. Newcomer, of Meriden Connecticut, was mentioned as a cousin of Edna.
Heiser, W. H. (2006). U.S. Naval and Marine Corps Reserve Aviation, Volume I, 1916-1942 Chronology. (n.p.): Dihedral Press.