Maria Beekman was the daughter of Gerard Beekman and Magdalene Abeel. 
Maria married into the prominent Walton family. They were merchants and were given exclusive trading rights with the Spaniards of Saint Augustine. She married Jacob Walton on 14 May 1726 in New York City. 
Thomas Walton, died young
Mary (Walton) Morris
Magdalena (Walton) Johnston
Catherine (Walton) Thompson
1726 May 12 Jacob Walton & Maria Beekman. Getrouwt May 14. 
Beekman is the surname that first appears in church records for Maria, at her marriage to Jacob. Quackenbush-118 09:30, 7 November 2017 (EST)
↑ 1.01.1 William S. Peletreau. Historic Homes and Institutions and Genealogical and Family History of New York. Vol. I-IV. New York: Lewis Publishing, 1907.
Ancestry.com. (New York Historic Homes and Family History, Volumes I-IV [database on-line]. Provo, Utah: Ancestry.com Operations Inc., 2002). Volume I, Walton Family, pg. 239-240.