sentences:  Emerson was born in 1906 in New York City, the son of Dr. Haven Emerson, Health Commissioner of New York City, and Grace Parrish Emerson, the sister of Maxfield Parrish.He was named for his paternal grandfather (1840–1913), who was also a medical doctor.At the age of 22, he bought a rudimentary machine shop from the estate of a local inventor.