Your Adam Eiffert may be my great-grandfather. As far as I can work out, his address was Kinman's Yard, Maidstone, Kent. My grandfather Adam, lived there. I am the daughter of one of his sons, Thomas who lived in Waterloo Street, Maidstone, not far from where Kinman's Yard used to be. My mother still lives in Waterloo Street, and St. Phillip's Church is opposite where she lives. I think my Great-grandmother's name was possibly, Caroline/Catherine/Katherina, and her maiden name was Steinbecker. I would be most pleased for you to share any more information you may have.