Jane Tyldesley was the daughter of James Tyldesley and Sarah Hayne, and was thus the great-granddaughter of Thomas Tyldesley 1657-1715, the Diarist.
As recorded on FamilySearch, Jane Tyldesley married Charles Grossett (whose name appears variously as Gorsett, Gossett, Grosett and Grosset) at Manchester Cathedral on 21 April 1767. The marriage was by Licence, with John Haughton acting as Bondsman. Charles Grossett is described by Gillow as a London Merchant and gave his address for the Licence as Inner Temple.
Charles and Jane Grossett had at least one child, James Alexander Charles Grossett, who was born on 3 December 1768 and christened on 7 January 1769—as recorded on FamilySearch.
The Muirhead website suggests that Charles Grossett was Charles Schaw Grossett, that there was a second child, Henry William Grossett born in April 1782, and that Charles Schaw Grossett died in Spain after April 1782.
As will be seen in a later posting, in July 1768 Charles Grossett was to object to the sale of the Holcroft Hall estates.