I came across Nelson Logan in the Montrose Review. He was a journalist and wrote poems that were published in the paper.
Montrose Review, 8 October 1920:

Mearns Leader, 5 March 1931:

Montrose Standard, 3 April 1931:

Nelson Logan also wrote this poem [he was not afraid of writing about dark subjects]: Montrose Review, 31 December 1920:

Also by Nelson Logan, as published in the Montrose Review, 19 November 1920:

Apart from these 3 poems, the newspaper archives contain no further writings by Nelson Logan.
In November 1923, Nelson Logan married Agnes McGregor, M.A., in Glasgow. She was also a journalist:

One month later, Nelson Logan died aged 27 years. He had been living with tuberculosis:

Agnes continued to call herself Mrs Logan until she married again. She never had any children. She died in Egypt in 1936 aged 40 years:
