According to Wikipedia –
“He felt himself to be an outsider, not only musically, but socially. In musical circles dominated by academics, he was a self-taught composer; in Protestant Britain, his Roman Catholicism was regarded with suspicion in some quarters; and in the class-conscious society of Victorian and Edwardian Britain, he was acutely sensitive about his humble origins even after he achieved recognition.”
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“His father, William Henry Elgar (1821–1906), was raised in Dover and had been apprenticed to a London music publisher. In 1841 William moved to Worcester, where he worked as a piano tuner and set up a shop selling sheet music and musical instruments. In 1848 he married Ann Greening (1822–1902), daughter of a farm worker. Edward was the fourth of their seven children. Ann Elgar had converted to Roman Catholicism shortly before Edward’s birth, and he was baptized and brought up as a Roman Catholic, to the disapproval of his father….”