The State of Hawaii information about Obama, such as the birth certificates, has been so questionable that I do not consider them a reliable source without corroboration.
OK, I think I get it now. When you said there’s no evidence that “they were married or that they even knew each other”, what you meant to say was that there’s all this evidence...
The Hawaii DOH Marriage Registry
Their divorce papers (if you think that’s not prima facie evidence for a marriage, get someone you know who’s single to apply to the courts for a divorce)
Anne Dunham’s registration from August 1961 for the Univ. of Washington in which she applied using her married name.
The internal INS memo from April 1962 which not only mentions the marriage but refers to the likelihood of bigamy.
Obama’s April ‘64 application for extended stay in the US which refers to the marriage.
... but that you’re not buying any of it.