Dorothy Lord, daughter of Thomas Lord senior and Dorothy Bird, was baptized Jul 01, 1629 at Towcester, Northamptonshire, England.  She married John Ingersoll by 1652.  They had three daughters, Hannah Ingersoll, Dorothy Ingersoll, and Margaret Ingersoll.  Dorothy (Lord) Ingersoll died 3 JAN 1656/7 Northampton, Massachusetts.
Dorothy Lord, age 4, and family sailed aboard the “Elizabeth and Ann,” with Roger Cooper as Master, from London to New England in 1635.
↑Genealogical Notes On the Founding of New England, page 274
↑ "Massachusetts Deaths and Burials, 1795-1910," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:FC9P-46P : 10 December 2014), John Ingersoll in entry for Dorothy Ingersoll, Jan 1656; citing Northampton, Hampshire, Massachusetts, reference p 132; FHL microfilm 186,161.
↑ Hotten, John Camden (editor). The Original Lists of Persons of Quality: Emigrants, Religious Exiles, Political Rebels, Serving Men Sold for a Term of Years, Apprentices, Children Stolen, Maidens Pressed, and Others, who Went from Great Britain to the American Plantations, 1600-1700. London: John Camden Hotten, 1874. p. 72 see attached photo.
Great Migration 1634-1635, I-L. (Online database. AmericanAncestors.org. New England Historic Genealogical Society, 2008.) Originally published as: The Great Migration, Immigrants to New England, 1634-1635, Volume IV, I-L, by Robert Charles Anderson. Boston: New England Historic Genealogical Society, 2005. Page 331-335 Thomas Lord
Genealogical Notes On the Founding of New England, database online, Ancestry.com, Ernest Flagg, (Hartford, Connecticut, Case, Lockwood & Brainard Co., 1926), p. 273-274. also found at FamilySearch, free access.
Shepard, T. Watson. Register of The Deaths in Northampton, Massachusetts, From The First Settlement of The Town in 1653 to August 1824 (T. Watson Shepard, 1824) Page 2 This source gives death date of Jan 1656. That's important because it suggests that Dorothy died soon after birth of her last child.