One of the longest standing and most expert researchers in the USA is Olin Cumpston.
His personal research is focussed on the following:
John, m. 1743 Boston, MA.
Edward, b. 1753
Thomas, b. 1755, married 4th of July 1776. The town bell ringer for Philadelphia and so was probably the one who first rang the Liberty Bell, perhaps even when it cracked.
John, b.. 1760 Henry, b. 1768 Jacob B,. c. 1770 John Henry b. 1780
Olin knows of no one in America who has immigration data on these men. If you can help please contact me urgently.