Saint Marguerite d'Youville was a French Canadian widow who founded the religious order the Order of Sisters of Charity of Montreal, commonly known as the Grey Nuns of Montreal. (from Wikipedia) see the link below for more information.
A marguerite (not to be confused with the name, "Marguerite") is a type of daisy. :)
Marguerite Harrison's birth name is Marguerite Elton Baker Harrison.
Marguerite Duras's birth name is Marguerite Donnadieu.
Marguerite Pierry's birth name is Marguerite Peter.
Marguerite Namara's birth name is Banks, Marguerite.
Marguerite Lliteras's birth name is Tina Marguerite Torres.
Marguerite Sikabonyi's birth name is Laura Marguerite Sikabonyi.
Marguerite Ducouret's birth name is Marguerite Victorine Ducouret.
Marguerite Courtot's birth name is Marguerite Gabrielle Courtot.
Marguerite Belafonte's birth name is Frances Marguerite Byrd.
Marguerite Porter's birth name is Marguerite Ann Porter.
Marguerite Piazza's birth name is Marguerite Claire Luft.