[3] The River-class frigate was designed by William Reed of Smith's Dock Company of South Bank-on-Tees.

[5] The name "frigate" was suggested by Vice-Admiral Percy Nelles of the Royal Canadian Navy and was adopted later that year.

[5] 15 Canadian frigates were initially fitted with a single 4-inch gun forward but with the exception of HMCS Valleyfield, they were all eventually upgraded to the double mount.

[6] For underwater targets, the River-class frigate was equipped with a Hedgehog anti-submarine mortar and depth charge rails aft and four side-mounted throwers.

[5] River-class frigates were the first Royal Canadian Navy warships to carry the 147B Sword horizontal fan echo sonar transmitter in addition to the irregular ASDIC.

Her hull forward was strengthened against ice and the quarterdeck was enclosed to contain two Squid anti-submarine mortars.

[11] Jonquiere was a member of the Fourth Canadian Escort Squadron based out of Esquimalt, British Columbia.

In June 1960 the Fourth Canadian Escort Squadron performed a training tour of the Pacific, with stops at Yokohama, Japan, Midway Atoll and Pearl Harbor.