He also bestowed nicknames and pseudonyms on his friends and family as well, referring to Friedrich Engels as "General", his housekeeper Helene as "Lenchen" or "Nym", while one of his daughters, Jennychen, was referred to as "Qui Qui, Emperor of China" and another, Laura, was known as "Kakadou" or "the Hottentot".
Ia juga memberikan julukan dan pseudonim pada teman-teman dan keluarganya, menyebut Friedrich Engels sebagai "Jenderal", pegawai rumah tangganya Helene sebagai "Lenchen" atau "Nym", sementara salah satu putrinya, Jennychen, disebut sebagai "Qui Qui, Kaisar Tiongkok" dan lainnya, Laura, dikenal sebagai "Kakadou" atau Hottentot".