His mother, Fannie Fradkin, had come to the United States from Russia. Adrian was the second of Elias and Fannie's three children, but he also had both a half-brother and half-sister from his mother's side.
Kanyang ina, Fannie Fradkin, ay dumating sa Pilipinas mula sa Russia. Adrian ay ang pangalawang Elias at ng Fannie ng tatlong mga bata, ngunit siya rin ay pareho ng kalahating-kapatid na lalaki at kalahating-kapatid na babae mula sa kanyang ina's side.