He was born in London in 1870, the son of Marian (née Loughnan) and Vaughan Pendred (1836–1912).
His father preceded him as editor of The Engineer,[1][2][3][4] and had previously edited The Mechanics' Magazine.
[4] Loughnan Pendred was educated at the South Kensington Central Institution and Finsbury Technical College.
He was apprenticed at the Colchester firm, Davey, Paxman and Co., and then worked in Ghent and France until 1893.
[5][6] Loughnan Pendred also edited the Ministry of Munitions Journal during the First World War.