Haurongo: Butler, Peter Michael
He whakaaturanga anō
Rārangi pukapuka
Butler, P. M. Papers, [c.1925–1971]. 89-119. WTU
Joyce, B. ‘Labour’s “Battling Butler” looks back on half-century of trade union struggle’. Evening Post. 5 July 1972: 6
Obit. Evening Post. 12 Oct. 1995: 7
‘Salute to Peter Butler’. New Zealand Clarion 21, No 2 (Aug. 1972): 1–3