John Lennon wani dan kasuwa ne na Irish wanda ya tafi a lokacin haihuwar dansa. A watan Yuli na shekara ta 1946, mahaifinsa ya sake kira shi John Winston Lennon bayan kakan mahaifinsa, John "Jack" Lennon, da Firayim Minista Winston Churchill. Mahaifinsa ya kasance sau da yawa daga gida amma ya aika da biyan kuɗi na yau da kullum zuwa 9 Newcastle Road, Liverpool, inda Lennon ya zauna tare da mahaifiyarsa; an dakatar da rajista lokacin da ya tafi ba tare da izini ba a watan Fabrairun 1944. Lokacin da ya dawo gida bayan watanni shida, sai ya ba da damar kula da iyalin, amma Julia, sa'an nan da juna biyu tare da wani mutum, ya ƙi wannan ra'ayin. Bayan 'yar'uwarsa ta yi kuka ga Liverpool ta Social Services, ya ba ta kula da John Lennon.
bayan kakan mahaifinsa, John "Jack" Lennon, da Firayim Minista Winston Churchill