I have the book Vol.1 of 2 "Mayflower Families Through Five Generations, Vol. 23, Part One: John Howland" for his children Lydia, Hannah, Joseph, Jabez, Ruth and Isaac.
Here is a list of all the children of @JOHN HOWLAND and @ELIZABETH TILLEY directly from the book:
@DESIRE HOWLAND b. 1624 or 1625. She m. @JOHN GORHAM .
@JOHN HOWLAND b. 24 April 1627. He m. Plymouth 26 Oct. 1651 @MARY LEE.
(see HOWLAND Vol.II)
@HOPE HOWLAND b. 30 Aug 1629. She m. @JOHN CHIPMAN. (A primary source for the birthdate of Hope has not been found.
@ELIZABTH HOWLAND. She m. (1) Plymough 13 Sept. 1649 @EPHRAIM HICKS (no children). She m. (2) Plymouth 10 July 1651 @JOHN DICKINSON.
@LYDIA HOWLAND d. after 11 Jan 1711. She m. @JAMES BROWN c.1654..
@HANNAH HOWLAND b.at Plymouth.Died at Swansea in 1705. She m. @JONATHAN BOSWORTH at Swansea 6 July 1661.
@JOSEPH HOWLAND b. ca 1640 b. Plymouth d. there Jan 1703/4. He m. @ELIZABETH SOUTHWORTH in Plymouth 7 Dec 1664.
@JABEZ HOWLAND b. ca 1644 (deposition) at Plymouth d, at Bristol before 6 Feb 1711/2. He m. @BETHIA THATCHER by 1669.
@RUTH HOWLAND b. ca. 1646 b. Plymouth c.1646, d, before 16 Oct 1675. She m. at Plymouth 17 Nov. 1664 @THOMAS CUSHMAN.
@ISAAC HOWLAND b. ca. 1649 at Plymouth d. 9 March 1723/4. He m. c.1676 @ELIZABETH VAUGHN.
I will be glad to do lookups for any information on the descendents found in this book.