Before his death in 1694, Duvall had purchased sizeable tracts of land, including Catton, later known as Belair, as well as owning Middle Plantation in Davidsonville, Maryland. Combined, he owned several thousand acres in Anne Arundel and Prince George's Counties.
"No more striking figure in colonial history is found than the personal achievements of this fleeing immigrant. He came as one of the one hundred and fifty adventurers, brought over by Colonel William Burgess. He settled in Anne Arundel County and became one of the most successful merchants and planters of that section." - J.D. Warfield wrote in The Founders of Anne Arundel and Howard Counties, Maryland.
Mareen Duvall is the ancestor of Barack Obama, Harry Truman, Dick Cheney, Supreme Court Justice Gabriel Duvall, Duchess Bessie Windsor, actor Robert Duvall, Confederate spy Betty Duvall and businessman Warren Buffett.
He is also my 9th great-grandfather and here is my line:
Mareen Mars Duvall, I (1630-1694)
Mareen Duvall, II (1680-1741)
Mareen Duvall, III (1702-1761)
Lewis Duvall, Sr. (1745-1808)
Lewis Duvall, Jr. (1789-1865)
Permelia Duvall Frogge (1810-1840)
Nancy Frogge Koger (1834-1891)
Thomas M. Koger (1855-1915)
Nannie Koger Boles (1890-1970)
Elmer Boles (1918-2002)
Glenda Boles Speck (1939 - )
Randy Speck (1959 - )