Sequeira João Lourenço was born on monthday 1923, at birth place, to João Lourenço (Nzua dia Lelesso) and Aldina Lourenço (Nzua dia Lelesso) (born da Silva ( Hebhu dia Kabweta ou Hebhu Manuel da Silva)).
João was born circa 1890, in Lucamba (Quissaco, Ambaca) - Malange.
Aldina was born in Camízua/Vulangombe- Malange.
Sequeira had 9 siblings: Agostinho João Lourenço, Santana João Lourenço and 7 other siblings.
Sequeira married Josefa Gonçalves Cipriano Lourenço (born Cipriano) on monthday 1952, at age 28 at marriage place.
Josefa was born on September 9 1928, in Moçâmedes - Freguesia de Santo Adriano (hoje Namibe).
Her occupation was Doméstica.
They had 10 children: Lutero Gonçalves Cipriano Lourenço(Lú), João Lourenço Neto and 8 other children.