Colt family genealogical papers have birth date as July 1713, but this would seem to be too late according to her children's birth years.
findagrave has a birthdate of March 12, 1700 in Old Saybrook, Hartford County, Conn.
Parents: Thomas Harris & Miriam Willie
Spouses: Ebenezer Marsh, Benjamin Colt
Inscription
In Memory of Mrs. Meriam wife of Mr. Ebenezer Marsh, who died July 80, 1765 in her 63d year.
"Reader behold as you pass by, As you are now
So once was I, As I am now, So you must be,
Prepare for death and follow me."