The Arthur Welch I have was born Feb. 24, 1886 and was married to Ethel Harmon(possibility that Harmon was a first married name). So far the only son I know of was a William Albert,born and died 1918. If this is the same Arthur then yes we are related. Hugh Edward Welch was Arthur's brother and my grandfather and my father was Harlan Welch(one of Hugh's sons.
Hope we are related maybe we can help each other fill in some