After his death, his estate went to his son, Stephen. Stephen died in 1970 at the same time that the founders of Ramapo College were searching for land to build the school on. After visiting the land, it was decided that the Birch estate would be the new home to Ramapo College. "The final settlement on all of the Birch property was not concluded until 1972 for $3,133,000 or a little over $10,000 an acre." The Birch mansion is now used as an administration building at Ramapo College of New Jersey.