Not surprisingly, ‘Ivo” wasn’t his real name. Ivo Crapp was born in Victoria in 1872, the son 5th child of English immigrants Henry Crapp Snr and Emma Snell, who had come over from Cornwall, England in 1864. Ivo, was actually the second child Emma and Henry had, who bore the name Henry. His parents giving birth to a child in 1870, giving him the name Henry, but this little one was unlucky and passed away just a year later in 1871. So when Ivo was born in 1872 he was given the family name Henry. But why was he nicknamed Ivo? The nickname came from his older brother William Henry Crapp, who was 7 years older than Ivo.
William Henry bore a resemblance to a member of the First class English cricket member Ivo Blight (who would later become the 8th Earl of Darnley). The English cricket team toured Australia in 1882/83, the first English team to do so. For Ivo Bligh, this was not a nickname, but in fact his first name.
William Henry played with Carlton during the early 1890’s and then in 1893 his younger brother Henry joined the team. So when William Henry retired, it seems that Henry took up the mantle of “Ivo” Crapp, and it stuck.