I have found something bizarre - don't know what to make of it. Indeed, I am totally confounded. I have never heard of Phillip H. O'Connor. I refer to this record at Find-a-Grave:
https://www.findagrave.com/memorial/3739968/philip-harry-o_connorAs far as it goes, everything in this account of James A. Logan agrees more or less with what I have found. In addition:
1) According to newspaper reports, James A. Logan was divorced from his first wife 1899.
2) the WW1 draft registration which refers to his cousin "Harley" in Appleton, Wisconsin. This was almost surely, his cousin Harland [not Harley] C. Logan who did live in Appleton, Wisconsin. It is very odd that he listed a cousin as nearest relative inasmuch as he had a wife and three children, an ex-wife and two children, and four brothers all living in California in 1918. Inexplicable, really.
3) In 1940, James A. Logan was living in Riverside, California with a third wife, Rebecca.
http://www.rootschat.com/links/01pgt/4) There is a California death record for James A. Logan in Riverside. It is identical to the death record for Phillip H. O'Connor.
James A. Logan, death
https://www.familysearch.org/ark:/61903/1:1:VG5F-1ZQPhillip H. O'Connor, death
https://www.familysearch.org/ark:/61903/1:1:VPF7-JW1>>>>>>
I have always wondered how James Logan wound up in Cuba and I suspected that he must have enlisted in the army [his first wife did divorce him for desertion]. Could he have used a fake name? I have not found any other plausible Phillip H. O'Connor born in Wisconsin in 1872. What on earth is going on?