Background
He was a son of landowner John Collett (1807–1891), grandson of judge Peter Collett and grandnephew of Christian Ancher Collett.
He was a son of landowner John Collett (1807–1891), grandson of judge Peter Collett and grandnephew of Christian Ancher Collett.
He was also the father of chemist and industrialist Emil Collett and physician Arthur Collett. He is known for taking over Salsbrukets Interessentselskab in 1871 and turning it into the estate company Firma Albert Collett. He was originally a clerk in Christiania Bank og Kreditkasse where Salsbrukets Interessentselskab was a customer, but became a partner in Salsbruket in 1868.