at the age of 11, caseby received leaflets about the tribes of livingstonia, malawi from his church leader reverend thomas chrichton. from the leaflets he learned about dr. robert laws, who inspired him to become a part of the livingstonia mission in present-day malawi. after returning to his home from the military, he was interviewed by dr. laws and his team to become a part of the foreign mission committee. he was accepted and appointed as assistant horticulturist, agriculturalist and head of forestry department at livingstonia.