Margaret Donchesen/Duncan was the first wife of Willem Teller. Traditional sources state that She was born in Alloa, Clackmannanshire, Scotland and baptized there on March 17, 1618. She may have been the daughter of James and Helen Livingston Duncansen. She may have married Willem Teller in Amsterdam, Holland on February 6, 1639. Her son, Andries Teller, was born in 1642. By the early 1660s, she had given birth to at least nine of Willem Teller's children. This Teller family lived in Beverwyck.

Perhaps she was the sister or another relation of Maria Donchesen Loockermans.

Margaret Donchesen Teller was dead by April 9, 1664 when Willem Teller, the widower of "Margariet Dunces," re-married.

Sources: The life of Margaret Donchesen/Duncan/Donckensen/Doncan Teller has not been assigned a CAP biography number. This sketch is derived chiefly from family and community-based resources. For more on her family, see "The Duncanson Wives of Four New Netherland Settlers; Glen, Teller, Powell, and Loockermans," in NYGBR 128:1 (January 1997).