An arrest warrant was issued for "Brownism" on 7 December 1607 for both William Brewster and Richard Jackson, probably both moved to Amsterdam about 1608, and joined the Henry Ainsworth Congregation.
Richard held a lease for a portion of Scrooby Manor. He and daughter Susanna may have fled to Amsterdam in 1608, and there she married William White.
On 30 October 1623, Edward Winslow wrote to Susanna's uncle Robert Jackson, clerk of sewers, enquring about his father-in-law (i.e. Richard Jackson), his wife's brother (whom we have identified as Thomas Jackson), and his wife's sisters.
Several letters written by Richard Jackson to his brother Robert survive in the Clerk of Sewers records at Spalding dated 1623 and 1624. The signatures on those letters, match the signature of Richard Jackson found on the Scrooby Manor lease of 1604. The letters reveal Richard Jackson had traveled to Holland, was in contact with Puritan ministers in London, and he was writing from Everton (the parish that borders Scrooby Manor).