My Great-Grandfather Dan B. Bennett was known to friends and family as "Happy Jack" Bennett.  Most people just thought his name was Jack as it is listed in this article:

From unknown paper Aug 1937:

Forney Man Found Dead Beside Track

    Meager information was received here today of the finding of the dead body of Jack Bennett, Forney farmer, on the Texas & Pacific right-of-way, just west of Brushy Creek this morning.  There was little evidence of mutilation of the body by a passing train, but a portion of his body was apparently scalded.

    Mr. Bennett was about 60 years of age and a tenant on the farm of John McKellar, near Forney.  He is survived by his wife and several children.  The funeral service will be held at Forney this afternoon at 4 o'clock.

He is buried in an unmarked grave at Long Creek cemetery, Sunnyvale, Dallas Co., Tx.

• Kaufman County Obituaries