Algernon Rose (Talks with Bandsmen, London 1894, cited in Waterhouse) states that Isaac Dollard was possibly the 'Mr Dollard, maker of flute, Kent-bugle, serpent and bass-horn', who apprenticed under John McNeil (ii) and was succeeded by George Butler in 1826.

Writing about 'Dollard' of Dublin (no first name), Henley comments: 'worked in Dublin, 1800, workmanship very rough and utterly puerile. Varnish dull and blotchy. Outline and arching perfectly exemplify incompetency of designer. Wretchedly poor and weak tone. 'Cellos belong to same order. Some instruments know of better modelling and workmanship, but generally assumed to have been made, or at least finished by M'Neill'.

References to, and instruments made or sold by members of the Dollard family often not distinguished by name. Mark: Dollard / Dublin (Waterhouse)

[Dates differ according to sources: Henley gives the date of 1800 and Waterhouse provides the dates of 1800 and 1826. Rose (cited in Lasocki) gives 1810. Note: based on the statement by Algernon Rose (cited above) that Isaac apprenticed under McNeil, it is probable that Henley's comments (cited above) refer to Isaac's work. However, it is also possible that it refers to John, as Boydell (Card Index) includes this information in reference to John only, and Hogan maintains that John was working c. 1800. It is unlikely to be Matthew.]