Probably Henrietta Maria, d.1792 (Oxford Dictionary of National Biography), née Phillips- wife of Walter Shirley (Shirley, Walter, 1725-1786 ), a Methodist clergyman and hymnist actively patronized by Lady Huntingdon. Walter Shirley coauthored A Narrative of the Most Remarkable Particulars in the Life of James Albert Ukawsaw Gronniosaw, an African Prince, as Related by Himself (1770).