Died from a hepatoma at his village, Magued in Daguain (
Joe Wiakabu was a field assistant of the Papua New Guinea National Herbarium (LAE) .
Joe joined the LAE staff in 1975 and retired in 2006. His plant collections include: April–May 1975: Star Mountains (West Sepik) with N.A (Artis) Vinas; March 1977: Itikunumu and near Owens Corner (Central) with Micky Benjamin (the first and only female Papua New Guinean botanist employed at LAE); June 1977: Yano Logging Area and from near Kupiono (Central); December 1977: Markham Bridge (Morobe); July 1978: Daru (Western province); January 1979: Lae Botanic Gardens (Morobe); May 1980: Baiyer River Santuary (Western Highlands); June 1980: Divide between Jimmi and Trauna Valley (Western Highlands); July 1980: Lae Botanic Gardens (Morobe); 1981: Mt Karoma (Southern Highlands) with J-F. Veldkamp; January 1982: Lae Botanic Gardens (Morobe); August 1999:
Source: pers com Barry Conn (December 2007)