Hi Jeff, I don't know if any other insurance company's records are on A2A apart from Sun Insurance. They have been around for a long time. You may have seen the brass sun symbols with a number below in old buildings. The records are held at Guildhall Library. Extracts from their archives are on A2A, so that is how I found them. I followed up my own suggestion by looking up the partner of William HESKINS, John MUMFORD. He continued in business longer than William, which gives me an indication of when William dropped out of the frame [died?] - about 1826, Best wishes with your search. Janet Heskins