In 1924, he wrote to West Africa to complain about an article in the Evening News, which had claimed that cannibalism and black magic had been common in Nigeria until recent years.
[4] In 1926, he recorded music in Yoruba for Zonophone, and in 1927, he published United West Africa at the Bar of the Family of Nations, calling for Africans to enjoy universal suffrage.
[4] During the 1930s and 40s, Solanke was able to use his friendships with figures including Marcus Garvey, Paul Robeson, Reginald Sorensen and Nathaniel Fadipe to further the causes of West African unity and anti-racism, raising the profile of WASU.
When cocoa farmers in the Gold Coast tried to break a cartel of British companies, they wrote to Solanke personally to gain his assistance, and he was able to organise a large campaign in Britain, including questions in Parliament.
His efforts to organise a slate of anti-communist candidates to contest the elections to the WASU executive in 1951 proved unsuccessful, and in January 1953 he finally split with the union after it decided to close Africa House, due to financial pressures.