online version: "About 20" in Sept 1704, marriage banns to Jonathan Collins posted on church door, when kidnapping occurred. [The telling in this source, though more detailed, seems so romanticized that it appears to be more family tradition than fact.]
↑ Elizabeth appears to be the oldest daughter in the family, and marriage in early 1705 suggests born before 1687, so she would be age 18 by marriage date. She is usually listed first in the family, which I presume is based on the order of children in the father's probate documents. Since we have a pretty good idea that brother Jonathan is born in 1684, for her to be older, her birth could be about 1683. (I entered this, in agreement with many sources, but this is not a great fit with the story of the privateers which suggest a birthdate in 1684 or even later. If one assumes Jonathan is the oldest child in the family as Source:A history of Chatham, Massachusetts : formerly the constablewick or village of Monomoit, with maps and illustrations and numerous genealogical notes does, one could make a reasonable case that Elizabeth is born about 1685. There is room to do this since we know the next child, David, was underage in 1706 and hence born after 1685.)