His highest first-class score was 190, which he made opening Wellington's innings against Auckland in February 1937.

On his debut in the first Test at Lord's he scored 64 in the first innings, adding 104 for the eighth wicket with Alby Roberts.

[9] Moloney was working as the chief clerk for the National Insurance Company in Dunedin when he enlisted to serve in the Second World War.

[4][10] He was a lieutenant in 20 Infantry Battalion at the time of his death at the age of 31 on Ruweisat Ridge during the First Battle of El Alamein.

[11] A monograph titled 'Forgotten Skipper - Gallant Soldier: Sonny Moloney' written by Rob Franks was published in 2023.