Fonds contains manuscript musical scores of Harriss' compositions: pieces for the keyboard, some orchestral works, organ music, part-songs and lieder, religious vocal music and patriotic songs. The rest of the fonds comprises a small amount of correspondence, much of it about the Imperial choir (1910), a photocopy of an autobiography covering the period 1862-1885, photographs of Harriss conducting Empire Day concerts (approximately 1920), and programs, 1890, 1924.

File consists of architectural drawings of church, including 1 development drawing (nave ceiling panels) and 3 detail drawings (lettering, marblework, fittings). Also includes 1 photograph of finished interior.

File consists of drawings for church, including:
1 presentation drawing: stencils
15 working drawings: stencil cartoons
1 detail drawing: diagram for panel symbols, plan

File consists of development drawings of woodwork for church (decoration of side aisle ceilings).

File consists of architectural drawings for church (alterations to chapel in transept), including:
2 measured drawings: piers and arches of nave, plan of chapel
1 presentation drawing: interior perspective of chapel in northwest transept
2 development drawings: figure base, embroidery
66 detail drawings: floor plan, wall diaper, screens, panelling, lettering, lamp, radiator enclosure, figure base, stair, furniture, floor plate, door hardware, ornament, money box, pipes, cross, woodwork (including furniture, ornaments, screens, clergy stall, cresting, angels, finials, tablet, altar rail, transept, reredos, retable), brass work (including tablet, base, cross), marblework, ironwork (including curtain rails, screen hangers, light fixture), stonework, decorations, finials, chalice
2 consultant drawings: chancel, spire
8 photographs: finished interiors

File consists of drawings for church decoration (angel with shield), including 2 working drawings (cartoons) and 8 detail drawings (decorations).

File consists of drawings for church (decoration: ceiling and northeast aisle), including 1 development drawing (furniture) and 5 detail drawings (woodwork, ornaments, visitors book, lettering).

File consists of drawings for memorial tablet, including 3 development drawings (lettering, tablet) and 3 detail drawings (tablet, lettering).

File consists of detail drawing of brass work for cross (stone; metal; brass).

File consists of drawings for sedilia (wood), including 1 development drawing (plan, elevation, section), 1 working drawing (plan, elevation), and 5 detail drawings (stonework for sedilia, woodwork (including crestings, seat, canopy), and lettering.