[1] Between about 1589 and about 1596 he served an apprenticeship in organ building under the aegis of the Blacksmiths' Company of London.
The eldest son Robert Dallam became an organ builder and Robert's sons in turn also became organ builders: Thomas (c.1630), Ralph (d. 1673) and George (d. 1684)[2] One daughter, Catherine, by her marriage to the organ builder Thomas Harris, was the mother of the organ builder Renatus Harris.
[1] Thomas Dallam's work as an organ builder consolidated the two-manual 'double organ' with twelve to fourteen flue stops (without reeds, mixtures, or pedals) as the norm for English cathedrals and for larger collegiate churches during the period before the English Civil War.
[1] The legacy of surviving instruments is minimal, because much of his work was destroyed by people hostile to church organs following the outbreak of the English Civil War.
Thomas Dallam's diary: This UK musical biography article is a stub.