for @DeathZen of the Twitterlands--

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Name: Youmans
Pronunciation: as Yeomans: Yo-munz (rhymes with "no puns")

A certain party of four brothers who came to this counry before the Revolution were all "Yeomans." As spelling reform did not yet exist, their descendants tended to spell their names in various ways at various times--Yeomans, Yeamans, Youmans. However, the pronunciation often remained the same for family members who could pronounce consistently even if they couldn't spell consistently. (Others do pronounce in the way you have noted.)

Best,
Marly Youmans