Johnson joined the Labour Party. He won April 1949 Singapore Municipal Commission election for North Ward, and was the only Labour candidate to have won a seat in the election.[2] In June, he was asked by the rest of the commissioners to draft a legislation for the requisitioning and control of all vacant premises in Singapore.[3] In June 1950, Johnson refused to serve as the party's president or vice-president despite being nominated as his confidence in the party was "shaken".[4] He left the party in July.[5] His resignation was accepted by the party during a meeting of the party's General Council on 25 August.[6] However, he retained his seat as an Independent Labour Commissioner.[7] He retired from the commission in 1951.[8] He also served as a solicitor and a barrister in Singapore.[9]
Personal life
He had a daughter.[10] On 11 December 1950, he was attacked by rioters during the Maria Hertogh Riots and was badly injured. He briefly went missing, and was found the next day in a drain.[11][12] He regained consciousness on 15 December.[13] By 1953, he had moved to England.[14]