Thanks Ellen! I have never seen the divorce record, before.
For many years I have suspicioned that this NYC family was Homer's family but cannot document it. However, the divorce record and Mary's age (24) and the age of the children could have multiple explanations. The two older children'a ages seem to be from a previous marriage. Edgar may have married 3x. Homer may be Mary's son and maybe not. Mary may be the house keeper (whom Edgar married) that is referred to in the family letter. The one thing we do know is that Homer's mother was Winifred Frost Theobold. Thus far, I can find no record of her being in NYC. I had always hoped to find a marriage record or newspaper reference to the effect.