He took six Jamaicans to help him on his journey across central Africa from west to east to cross the continent and rediscover David Livingstone's mission.

Johnston's book and photographs record the journey and his observations on many things but particularly overly ambitious missionaries.

[4] In 1893 he wrote what he described as "an account of a journey across the continent of Africa from Benguella on the west through Bihe, Ganguella, Barotse, the Kalahari Desert.

Mashonaland, Manica, Gorongosa, Nyasa, the Shire Highlands to the mouth of the Zambezi to the East Coast."

He had been inspired to visit what he called the "Dark Continent" by reading as a child of the exploits of Robert Moffat and David Livingstone.

[6] Johnson's book which he titled, "Reality versus Romance in Central Africa" included dozens of Johnston's photographs.

Johnston is aware that he has no interpreter for the land ahead so he spends several weeks at Cisamba so that he can learn the basics of the Umbundu language.

He had waited years for a reply and then men had arrived with papers claiming that they had the power to make this happen.

Lewanika was incensed to find that the men were from a South African company and that the ivory tusks were not with Queen Victoria but as ornaments in the directors board room.

Johnston stayed for some time and witnessed a New Year's Eve firework display organised by the missionary.

Johnston did not approve of single ladies as missionaries but he was impressed with the high standard of progress and workmanship he saw around the mission and its buildings.

He witnessed "a fine saw-mill with six span of oxen for the motor power, brick-making machines, smithy with patent forge, miner's workshop, fitted with every tool the mechanic requires, from a bradawl to a turning-lathe".

By the end of February Johnston has returned to the Jolla mission and he sets out to cross the Kalahari Desert.

Johnston was treating his ten-year-old daughter for fever and he saw that Booth was "prepared to sacrifice his only child to the hallucination that possesses him.

"[9] He gave lectures for over a decade explaining the benefits of visiting and migrating to Jamaica using slideshows.

[2] In 1915 the Universal Negro Improvement Association met at Johnston's Tabernacle Church in Brown's Town and Marcus Garvey was the main speaker.

[4] When he died in November 1921, people accompanied his body as it was taken 14 miles to St Acre in his own Chalmers steam car.