Fonds consists of records pertaining to Gateway Rockhounds’ membership and member activities, its association with affiliated societies, participation in various gem and rock shows and fundraising activities, and includes notices, bylaws, newspaper clippings, correspondence, minutes, questionnaires, rock and gem information catalogues and advertising flyers, financial records, reports, resolutions, certificate of incorporations, membership lists and applications, duplicate receipt books, the Gateway Rockhounds newsletter, Gateway Grit, and newsletters from various other lapidary clubs, and photographs depicting a trophy and a display of rock specimens.

The fonds consists of executive minutes, correspondence, bylaws, and a club history created by the Alberta Federation of Rock Clubs between 1963 and 2002. The executive minutes cover the period between 1963-1972 and 2002.

The fonds consists of operational records of the Dresser Minerals' bentonite mine at Rosalind, Alberta, including survey maps, aerial photographs, government permits, and other materials (1960-1988) and drilling logs from the Rosalind bentonite mine (1958-1960).

The fonds consists of administrative records including council minutes, annual reports, correspondence, membership registers, guidelines, and publications. The fonds also contains records from the various committees of APEGA including the License Committee, Amalgamation Committee, Ethics Committee, Committee on Life Membership, Legislation and Bylaws Committees, Nominating and Publicity Committee.

The fonds also includes a guide for the Selection of Professional Engineers, Geologists, and Geophysicists for Consulting Services prepared by the Association of Professional Engineers, Geologists and Geophysicists of Alberta in 1965 and a membership register for the Association dating from 1965.

The fonds consists of hand-coloured lantern slides of flowers, the movement of floral parts, fertilization and seed production, fruits, flower gardening, ornamental planting, vegetable gardening, farm scenes, potatoes, the microscopic structure of plants, landscapes (Pacific Coast, mountains, park country, plains), farms, mammals, birds, the erosion of rocks, sunsets and clouds, clouds, deposits of sand and gravel, stratification of rocks and soil, plants as soil makers, erosion of rocks, logging and lumber, and trees; glass plate negatives of the Banff area including hotels, golf courses, mountains; farm machinery; negatives of the family's farm, family members, farming, harvesting, picnics, the Drumheller area including hoodoos; and a photograph of William Copeland McCalla.

Fonds also includes three ledgers of farm notes, seed records, accounts of receipts and expenditures, manure records, etc. for William Copeland McCalla and Margaret McCalla's farms at St. Catherines, Ontario and Bremner, Alberta. Part of the third ledger is farm notes, accounts of receipts and expenditures, etc. for Frederick and Gladys McCalla, who took over the Bremner farm from parents William and Margaret. Includes some loose notes, correspondence, receipts, Alberta Wheat Pool grading slips, etc.

Fonds also includes a CD made in 2008 by Alex McCalla that contains scans of all the pages in the ledgers.

Fonds also includes McCalla's lantern slide projector and a wooden lantern slide case in a canvas carrying bag.