DAR records seem to be the only place recording her name as Margaretta and other family listings have it as Martha.
"Maudlin Holdiman" married Jacob "Shinaver" 12/10/1759 in Lancaster City, PA. He died 4 years later leaving her with two children, John and Barbara, and expecting a third. His will was dated 12/13/1763 naming Jacob Erp and Jacob Sencenick as executors. Magdalena signed a statement on 12/30/1763 to the effect that she understood the terms of her late husband's will. However, his estate fell short of paying all debts so a sale was held 1/16/1765.
In a deed dated 5/1/1769 it states Magdalena, widow of Jacob Shonauer is now the wfe of Joseph Gundy.
Her birth year is 1748 in DAR records, the date posted is from Salem Reformed Church records in Harrisburg, Dauphin Co, PA which also records her name as Maria Magdalena Gundy.
Maria probably lived with daughter Mary after Joseph's .
DAR records have 1790 as her death year but Dauphin Co, Church records have the date posted and list her name as Maria Magdalene Gundy.
Philip Gloniger, Minister of the Salem Reformed Church, recorded:
"On Nov 15, 1810, I gave the H. Communion to Magdalene Gundy on her sick bed."