the Jerome of the 1892 Jerome, Withers, and Lawrence Realization and the Jerome Stakes, was almost certainly Jennie (Jerome)Churchills father, a well known realestate developer in NYC who owned the Jerome Racetrack,(now the site of nyc holding reservoir, in the bronx).

Jennie was as most of you know, married to Randolph, and mother to Winston. (the family owned real estate all over NY, Jennie was born at home, in Brooklyn (carrol gardens area).