It seems he first married her in the Mayfair Chapel, notorious for conducting clandestine marriages, and perhaps went through a second marriage when it became clear that a record of the first was not properly kept.
ɪt sˈiːmz hiː fˈɜːst mˈæɹid hɜːɹ ɪnðə mˈeɪfɛɹ tʃˈæpəl, noʊtˈoːɹiəs fɔːɹ kəndˈʌktɪŋ klændˈɛstɪn mˈæɹɪdʒᵻz, ænd pɚhˈæps wɛnt θɹuː ɐ sˈɛkənd mˈæɹɪdʒ wɛn ɪt bɪkˌeɪm klˈɪɹ ðˌæɾɚ ɹˈɛkɚd ʌvðə fˈɜːst wʌz nˌɑːt pɹˈɑːpɚli kˈɛpt.