The Raskobs were some of the newer families in America, the Greens one of the oldest. John Raskob's paternal grandfather, Jakob Raskob, emigrated from Germany in 1845, marrying Margaret Schomers, another recent immigrant, shortly after his arrival. On his mother's side, both grandparents were born in Western Ireland, possibly in Roscommon, married there and emigrated to the United States around 1850, eventually settling near Indianapolis.

Helena Springer Green's ancestors arrived in the Maryland colony on the Ark, in 1634, among the original Catholic colonists. John Raskob financed an extensive genealogical investigation of his wife's ancestors (in part to keep a particularly demanding relative busy and distant) and privately published the Raskob-Green Record Book as a document of the family's history.

John and 'Skipper' married in 1906, and were devoted to each other, and to their 13 children, until John Raskob's death in 1950.

Selections from the Raskob-Green Record Book (Hagley Library, call no. f D* CS71 .R225 1921)

First page of genealogical entry for Helena Raskob, from the Raskob-Green Record Book (view)

Genealogical charts for the Greene and Raskob families (view)

Appointment of Thomas Greene as Governor of the Maryland Province, 1647 (view)