Only one PROSSER in my family;
Helen PROSSER b.? married in 1815, in the Parish of Marylebone, to Charles Joseph (de) BELIN b.1790. They moved to France (Charles had English School there). They had one child Julia b.1816, Lyon, France. Helen d.1824, Le Havre, France, described as "daughter of the late Major PROSSER of the Royal Artillery".
I am descended from Charles' 2nd marriage, not to Helen PROSSER.
Les