Schoeman was born in Johannesburg in the British Colony of the Transvaal on 19 January 1905, the son of train driver Barend Jacobus Schoeman, and Abelina Jacoba Schoeman. After completing his studies at high school, he joined the railway industry, and worked as both a driver and a fireman. He progressed up the hierarchy, and after 16 years he achieved the position of station master. He entered politics as a member of the United Party, being elected as Member of Parliament for Fordsburg in the 1938 general election, gaining a majority of 1,127 over TC Robertson of the Labour Party. Aged 33, Schoeman was the youngest member of the House of Assembly. At the outbreak of the Second World War, Schoeman supported Prime Minister J. B. M. Hertzog's stance of neutrality. When Hertzog resigned as Prime Minister and switched his allegiance to the National Party, Schoeman similarly switched parties, and in 1940 he became the head of the National Party in the Witwatersrand, and a member of the party's Executive Committee. While some have accused Schoeman of being a member of the sometimes militant Afrikaner organisation Ossewabrandwag;, Schoeman claims in his memoirs that he was offered the position of general in the organisation but refused. Similarly, Schoeman was approached by the Nazi-sympathizing Oswald Pirow to join his "New Order" organisation which advocated for national-socialism in South Africa. Schoeman declined to support the organisation because of his belief in democracy for the Afrikaner people and ended his relationship with Pirow.
Leadership election
After the assassination of Prime Minister Henrik Verwoerd in September 1966, Schoeman was widely considered to be the favourite to assume leadership of both the National Party and the country. However, the day before the election, he withdrew from the race, granting victory to the only other candidate; John Vorster. In an interview conducted shortly after his withdrawal, Schoeman, who looked as though he had been crying, revealed that he had made the decision due to "gossip, even about my wife." In their 2003 book Unfinished business: South Africa, Apartheid and Truth, Terry Bell and Dumisa Buhle Ntsebeza suggest that Schoeman was blackmailed by Vorster, though offer no evidence for their theory. African National Congress stalwart Gwede Mantashe has similarly claimed that Schoeman was blackmailed by "securocrats", forcing him to unexpectedly withdraw his candidacy and allowing the more conservative Vorster to take power.
Legacy
Phil Weber, an editor of Die Burger, believed that Schoeman was the "most sober thinker" of D. F. Malan's cabinet regarding the government's stance on apartheid. Notably following the Sharpeville Massacre, Schoeman along with Eben Dönges and Paul Sauer, publicly called for a relaxation of certain Apartheid policies, but this was rejected by Verwoerd. Various major public infrastructure projects have been named after the long-serving minister including the larger outer dock of the Port of Cape Town, South Africa's busiest highway Ben Schoeman Freeway and previously the East London Airport. Under his ministership Richards Bay Port, Africa's largest coal export facility, was built to expand South Africa's coal exporting capacity.