1.
He’d is the usual spoken form of ‘he had’, especially when ‘had’ is an auxiliary verb.
He’d never learnt to read.
2.
He’d is a spoken form of ‘he would’.
He’d come into the clubhouse every day.
HE’D
Meaning of HE’D in English
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012