[18] Classes were organised in Derby by the Electrical Association for Women for those in domestic service, which Mrs Pender Chalmers took part in.

[28] An earlier article in The Woman Engineer noted that Chalmers had completed a course on "Maintenance of Aircraft" at the London Aeroplane Club.

[14] In 1933, she gave a talk called "My Flying Visit" at the Minerva Club organised by the publication The Vote.

[27] In 1937, she gave a lecture arranged by the Electrical Association for Women entitled "By Air to Baghdad, Babylon and Ur".

At the annual dinner of the Women's Engineering Society in 1937, Sir Francis Shelmerdine, director general of civil aviation, paid tribute to Mrs Pender Chalmers, who was present at the dinner, for becoming 'air-minded' and demonstrating the general use of the light plane in the days before private aerodromes were developed.

On 23 December 1937, she married Frank Forrest (1879–1950),[34][35] who was chief engineer and manager of the Birmingham Corporation Electricity Department.

[37][38] In 1939, she adjudicated a public speaking competition in Birmingham organised by the British Electrical Development Association.