He arrived in America sometime before 1690 and settled in what is now Montgomery County, Maryland.
Mary Berry was his second wife.
James Beall and Alexander Beall, sons of Alexander Beall, both refer to Robert as "Brother" (Alexander Beall will, 16 Jan 1743 - 5 Sep 1744), but their parents' names differed. It could be brother-in-law, foster brother, cousin, or could refer to different Robert.
In his will, probated 1748 in Frederick City, Mary Berry was to receive James and Mary and Worse than Nothing. However, Robert Beall in Prince George's County on 9 Oct 1755 "For love and affection toward my loving children James Beall and Margaret his wife I give 12 head of cattle, 2 feather beds, 2 duffel blankets, 2 sheets, 2 large pewter basins and numerous other household and farm implements." Signed Robert Beall. Children: James, John, and Margaret. Richard excluded.
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James' will mentioned that he was a brother of Alexander and Alexander's will mentioned his brother Robert. James' will also mentions "cousins" William and John Beall. He was a member of the first Presbyterian congregation of Prince George's Co. Colonial Families of the United States Descended from the Immigrants This book contains the genealogy of Bell, Beal, Bale, Beale, Beall colonial families who arrived before 1700. Most of the individuals originated from England and Scotland who are now settled in Maryland. From Data Collected and Edited by Lieutenant Colonel Fiedler M.M. Beall, U.S. Army Ret, Printed by Chas. H. Potter & Co., Inc.Washington D.C. 1929. pp. 10-11&15. As brother Robert, mentioned in his will, did not have the same father and mother as Alexander did, it is surmised that Robert was a Scotch foster brother." --notes by Norma Lundgren
Robert (the Scotsman) Beall 
