Ledgers with expenses and income from rental property from 1937 to 1959, most of which were probably kept by her father until his death in 1954 and then by mother and/or Daphne. Ledgers kept by Daphne Mayo from 1960 to 1965 incorporate income and expenses for property, dividends and her profession. Folders contain correspondence, notes, invoices and receipts, and rental books for property in Highgate Hill, Brisbane.

Daphne Mayo was part of the Queensland National Art Gallery Education Committee, Queensland Combined Art Committee, and trustee of the Queensland Art Gallery. As a Trustee of the Godfrey Rivers Trust she played a substantial and active role in procuring art works for the Gallery.

Two folders of handwritten notes, in pencil, determined to be by Vida Lahey.

The subseries has the drafts, notes and typescript of Vida Lahey :artist written by Daphne Mayo under the pseudonym of Lilian Macarthur; permits; identiifcation documents; ephemera; personal documents; handwritten notes, writings, scribblings and copious lists for all areas of her life.