William Allen (1720-1791) and Mary Walsh (? - 1747), had 3 chiildren of whom I have records. Samuel, 1747-1817, had no issue that I know of. Jane, 1744, probably died young. Joseph (1741-1803) m Sarah Plumley in 1764. I have records of six chilldren: John, Israel (b. 1766, m Elizabeth Titus, one daughter, Mary), Joseph, Mary, William and Sarah. I do not encounter any Edwards in your time frame anywhere in this family but that should not be taken as the last word since I do not follow every line in detail. Sorry I cannot help more.