Didn't Kenya? Also, was Kesiah's marriage legally recorded or was it more of a tribal ceremony, jump the broom, or a hey let's shack up free cow's milk thing?
I don’t believe that mix and match between tribal, Civil/Christian or Muslim marriages was allowed.
See Kenya Marriage Act of 1902 paragraph #49:
49. Whoever contracts a marriage under this Act, being at the time married in accordance with native law or custom or in accordance with Mohammedan law to any person other than the person with whom such marriage is contracted, shall be guilty of an offence and liable to imprisonment for a term not exceeding five years.
kenyalaw.org/family/statutes/...?file=The+marriage+act.pdf
That’s a good question. Kenya was a British colony at that time, and Britain did not recognize polygamy; but I don’t know if it allowed some kind of “grandfather clause” in its colonies for such a thing. It may very well be that Kenya, as a British colony, allowed polygamy. But I don’t think that would have changed how the United States applied its laws on the subject. But, you’ve raised a good question.