These are sometimes also attributed to John Ford of Edinburgh, though I'm not sure of the evidence on which the John Ford attributions are based.
Barbara Morris’ “Victorian Table Glass and Ornaments” of 1978. Her description within the text reads
“..the pair of comports or candlesticks made by John Ford with a figure of a boy gardener with a basket on his head, with a milkmaid with a pail as his companion. Both figures being in eighteenth dress..”
and with the photo she describes them thus:-
“Pair of figures in clear colourless glass with abraded surface, used as candlesticks or bases with shallow dishes forming comports or tazzas. Made by John Ford, Holyrood Glassworks, Edinburgh, circa 1870-5, h 9 ¾ ins. (Sotheby’s Belgravia).”
Also mentioned as John Ford pieces on p356 of Charles Hajdamach's " British Glass 1800-1914".
Fred.