His company produced radical newspapers, advocating representative government and a West Indian federation.

Marryshow, who at an early stage Anglicised his surname, advanced rapidly from delivering newspapers to being a competent journalist.

The first issue (1 January 1915) promised that it would be "an immediate and accurate chronicler of current events, an untrammelled advocate of popular rights, unhampered by chains of party prejudice, an unswerving educator of the people in their duties as subjects of the state and citizens of the world".

Marryshow was an outspoken opponent of the apartheid regime in South Africa and confidently predicted independence for British African colonies.

In 1921, he went to London at his own expense to argue his case and this led directly to the establishment of the Woods Commission, which visited the Caribbean in 1922 and recommended five elected members out of a total of 16 in the Legislative Council, to apply both in Grenada as well as in the other Windward Islands, the British Leeward Islands and Trinidad and Tobago.

To restrict their circulation the British passed a Seditious Publications Bill, which was opposed by Marryshow who believed strongly in the freedom of the press.

The house, which was reputedly the first built in Grenada using cast concrete, was in a colonial style and was idiosyncratically and eclectically furnished, with people remembering best a life-sized ceramic bulldog, which became his political mascot.

The dining room was frequently used to host the many people Marryshow had become friendly with through his work, including the Trinidadian writer C. L. R. James and the singer Paul Robeson.

Since being sold by Marryshow’s family the building has hosted many important events and has also been twice featured on postage stamps of Grenada.

At the beginning of the 1980s schoolchildren in Guyana were still using Colonial-era textbooks showing illustrations of white children in English homes.