Many names contain UH in their pronunciation. It isn’t included as a digraph in the BtN Pronunciation Guide at
http://www.behindthename.com/info/pronunciation – is it safe to assume it’s usually meant to be equivalent to just U as in ‘but’ and ‘sun’? (I wish IPA was used everywhere, U and UH would probably correspond to /ʌ/.) I’ve also encountered several cases of AH, e.g. in German pronunciations, where I’d expect /ʌ/ as well.
Rough IPA to BtN conversion guide
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/tʃ/ CH cheek (tsh)
/ð/ DH then
/ɣ/–/ç/ GH Scottish laghail
/dʒ/ J jump (dzh)
/x/–/χ/ KH Scottish loch
/ŋ/ NG fling, sink
/ɹ/ etc. R right
/ʁ/ RH French riche (guttural R)
/r/ RR Spanish rojo (trilled R)
/ɾ/ Ṙ Spanish caro (tapped R)
/ʃ/ SH shine
/θ/ TH thin
/j/ Y yeti
/ʒ/ ZH azure, vision
/æ/–/ɛ/ A bat, can
/ɒ/–/ɑ/ AH pot, con
/ɔ(ː)/ AW bought, sawn (cot-caught merger: /ɑ/)
/eɪ/ AY bait, cane
/ɛ/–/e/ E bet, care
/i(ː)/ EE beet, keen
/ɪ/ I bit, kin
/aɪ/–/ʌi/ IE bite, kind
/əʊ/–/oʊ/ O boat, cone
/ɔɪ/ OI boy, coin
/u(ː)/ OO boot, soon
/aʊ/–/ʌʊ/ OW bout, gown
/ʌ/–/ɐ/ U but, sun
/œy/ UI Dutch huis
/ø/ UU French feu
/ʊ/ UW put, took
/y/ UY French rue
/ə/ ə about (schwa)
/ː/ : preceding vowel is long (drawn out)
/x,ɣ,χ,ʁ,ħ,ʕ,h,ɦ,ʜ,ʢ/? ‘ guttural fricative
/ʔ/ ’ glottal stop
/ʰ/ ^H preceding consonant is aspirated
/ ̃/ ^N preceding vowel is nasalized
/ᵗ/ ^T epenthetic t
/ᵊ/ ^ə following consonant is syllabic