Before 1470 was at Stinningfleet, Yorkshire.
Was a Yeoman
Children
Miles CROSBY b: ABT. 1483 in Shipton, York, England
John CROSBY, Jr. b: ABT. 1470
Robert CROSBY b: ABT. 1475
Richard CROSBY b: ABT. 1478
William CROSBY b: ABT. 1480
Agnes CROSBY b: BEF. 1502
Emma CROSBY b: BEF. 1502
The Will of John CROSBY of Styllyngfleyte, dated April 1502. To be buried
in the choir of the parish church of Styllyngfleyte. To the Church of
Styllyngfleyte 10s. and to the church of Alne 5s. For masses in the church
of Styllyngfleyte L4. To the four orders of Brothers of York 2s. To my son
John 6s 8d. To my son Richard ten sheep, two calves and 20s. To my daughters
Emme and Agnes 6s. 8d. each. To my son Robert 20s. To my son Miles the
remainder of all the years which I have in a house called Gyhowse lying in
Flawath, with the appurtenances. To John Crosby, son of Robert Crosby, a
house called Boyhowse lying in Flawath, with appurtenances. All residue of
goods to my sons William and Miles, they to be executors. Witness, John
Myln, chaplin. Proved 8 June 1502 by William Crosby one of the executors
named, power reserved for the other. (Prerogative and Exchequer of York
Wills, Vol. 6, fol. 29. Transalated from the Latin).
Genelogical studies differ.
Ernest Howard Crosby, an exhaustive researcher writing for the New York Genealogical & Biographical Record in 1898, says that it is impossible to prove any connection between Sir John Crosby and the Crosbys who imigrated. But Dr. Emerson Crosby Kelly, in "A Crosby Family Line" copiled in 1957, and Presumbly benefitting from more recent research, writes that the copilation of early Crosbys, following Sir John Crosby in 1440, was made by a professional genealogist and may be correct. Accepting this, we are folling his practice (shared by other researchers) of dating the generations from Sir John, Hence the numerals following the names of lineal descendents. In any case when we reach 1575, we are on secure ground.
-------------------------------------
From " Alonzo Crosby Family":
"The most celebrated palace in London was built and occupied by Sir John Crosby in 1466. He died in 1475 and his widow sold the palace to King Richard III, who for a time, made it his residence and it became a palace in reality as well as in name.
Sir John was a lineal descendent of Sir Pierce Crosby, who decended from Sir Odo de Crosby, son of Sir Simon de Crosby, born ~1220, son of Sir Charles Crosby, born ~1200."
Sir Charles Crosby's lived in Lancashire, England.
Sir John Crosby 
