The late Johnson was appointed as the military Administrator by the military Head of State, Major Gen. Thomas Aguiyi-Ironsi, and later, Governor of Lagos State by his successor, Gen. Yakubu Gowon.

He served in that capacity between 1966 and 1975 when he was compulsorily retired by former Head of State, Gen. Murtala Mohammed.

However, he and the military governor of Western State, Brigadier Oluwole Rotimi, were separated from the pack of colleagues who were indicted for corruption.

In retirement, he ventured into business, becoming a director of Julius Berger, the construction giant.

Johnson was born on February 9, 1936. His administration supervised the unpopular demolition of Ajele Cemetery in the early 1970s.

His tenure saw the building of major infrastructure in Lagos State.

He was first appointed by Aguiyi-Ironsi as the Administrator of the Federal Capital Territory, Lagos in 1966. He was involved in developing the civil service.

Johnson was initially assisted in running the state by some key civil servants, including Administrative Secretary, Adeyemi-Bero; Finance Secretary, Folarin Coker, and the Acting Secretary to the Military Government, Howson Wright and waited until April 1968 before appointing his commissioners.

In 1975, at the inception of the Gen Murtala Mohammed administration, Johnson was one of the two governors found not guilty of corruption by the three-man panel set up to investigate the various allegations of corruption amongst the State Governors.

He retired from the Nigerian Army in 1975 and went into private business.

A road, an avenue, and a sports complex in Mobolaji’s home state bear his name as well as a Housing Scheme at Lekki both in Lagos.