Hi.
If you have no luck from other sources, perhaps look at this National Archives item:
Item
BT 26/710/79BT 26: Inwards Passenger Lists
Liverpool: MS Aba (British and African Steam Navigation Company Ltd) travelling from West Africa to Liverpool.
Embarking at Lagos, Accra,Sekondi, Sierra Leone and Grand Canary.
Official Number: 141887.
List of passengers disembarking at Plymouth and Liverpool.
Covering dates 1922 Feb 21
The Aba seems to have made this same voyage 6 times in 1922:
http://www.nationalarchives.gov.uk/catalog...&image1.y=7Some brief technical details from a New York Times article:
http://query.nytimes.com/mem/archive-free/...9679C946395D6CFThere's a photo of ABA here:
http://www.britisharmedforces.org/pages/nat_troopships.htmMartin