The first paragraph of the Dahling memo (redacted version) says he married Stanley Ann Dunham a United States Citizen in February, 1961. The memo was written two months later in April, 1961.
The unredacted, truncated memo says he got his USC wife hapei - hapai is Hawaiian for pregnant.
USC stands for United States Citizen.
Was he married to two USC wives at same time?
That would be bigamy and as McCabe says they could probably deport him for that.
https://www.scribd.com/doc/54015762/Barack-Hussein-Obama-Sr-Immigration-File
page 34 doesn’t name the wife.
page 35 has the name entered after the name of the wife was crossed out.
August 31. No child.

That the Kenyan may have advised the student advisor in April 1961 that he had married Stanley Ann Dunham doesn’t make a marriage. All it suggests to me is that this is the point in time in which the identities of the student Ann Obama and the Dunham daughter were blended.
Ann Obama wasn’t Stanley Ann Dunham. Ann Obama is seen standing close to the Kenyan student in the group photograph supplied by Codevilla.

In fact, it was Obama Sr. who told the INS officials about the wife and child, and they were openly skeptical about the validity of the marriage.
The most significant problem with Jacobs reporting, however, is that she seems to have gotten information others did not.
Wrote Dahling in the memo, based on a recent conversation with Obama Sr., Subject got his USC wife Hapai and although they were married they do not live together and Miss Dunham is making arrangements with the Salvation Army to give the baby away.
Hapai apparently is Hawaiian for pregnant. USC is shorthand for United States citizen. According to Jacobs, the Dahling memo also noted that Obama Sr. had previously been warned about his playboy ways.
This same memo showed up in the batch requested by the Arizona Independent and posted online the evening of April 26, 2011, the night before President Obama shared his birth certificate.
Although reporter Heather Smathers had the same April 12 memo that talked about Obama Sr.s playboy ways, the Independent did not report on the potential adoption
The reason for Smathers silence was simple enough: the critical sentence had been redacted on the document she received. In terms of sentence flow and length, it would seem to fit right in place in the middle of the documents third paragraph.
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... and Miss Dunham is making arrangements with the Salvation Army to give the baby away.
That is pure conjecture. There are too many missing words to reach that conclusion. It's also doubtful that the name is 'Miss Dunham'