Professor Wasawo was born 17 May 1923 in
Gem, Siaya County, Kenya, to parents Petro (Peter) Onyango Osare and Ana Omondi, a family of
Kenyan Luo. He entered
Maseno School in 1937 and attended
Alliance High School from 1942 to 1943, where he was taught by mathematician
Edward Carey Francis, who later, when asked who was the most brilliant student he had ever taught, answered "Far and away, David Wasawo". Professor Wasawo entered
Makerere University, Uganda, in 1944, which at the time only granted diplomas not degrees. He focused in biology and excelled in his studies, and the Principal of Makerere provided full support for Professor Wasawo to attend
Oxford University in England. He received the degree of
Master of Arts in Zoology in 1951 becoming the first East African to be awarded a degree in science. ==Academia==