An haifi Doyle a ranar 22 ga Mayu 1859 a 11 Picardy Place, Edinburgh, Scotland. Mahaifinsa, Charles Altamont Doyle, an haife shi ne a Ingila, na zuriyar Katolika na Irish, kuma mahaifiyarsa, Maryamu (née Foley), Katolika ne na Irish. Iyayensa sun yi aure a 1855. A 1864 iyalin suka warwatse saboda yawan shan giya na Charles, kuma yara sun kasance na ɗan lokaci a Edinburgh. A 1867, iyalin sun sake haɗuwa kuma sun zauna a cikin gidaje masu tsada a 3 Sciennes Place. Mahaifin Doyle ya mutu a 1893, a Crichton, Royal Dumfries, bayan shekaru da yawa na rashin lafiya na rashin lafiya.
Foley