[1] The migration schemes were mired in controversy because most of the children were forced to travel to Australia.
[4] Crennan was made an Officer of the Order of the British Empire on 10 June 1967 for his work as Director of the Catholic Immigration Committee.
In 1989, he was made an Officer of the Order of Australia with the citation: In recognition of service to the community, particularly in the field of migrant welfare.
Crennan was also the recipient of the 1998 Austcare Paul Cullen Award for his work on behalf of refugees over many years.
The Governor General of the day, Sir William Deane, presented the award at a ceremony to open Austcare National Refugee Week 1998.