Samuel Gilbody was the son of a Liverpool delftware potter, also called Samuel, who had a pothouse on Shaw's Brow. Samuel Gilbody Snr died in 1752 and the pothouse passed to his widow. She seems to have involved her son Samuel in the running of the pothouse and by 1758 he was making porcelain there. This venture proved to be very short lived and disastrous. By February 1760 he was bankrupt, followed a few days later by his mother.
A few pieces of Gilbody's porcelain bearing overglaze prints by Sadler have survived. One of these prints bears the signature Gilbody Maker, which would show that Gilbody had specially commissioned the print for use on his porcelain. He was on good terms with Sadler and was one of the two potters who certified the tile printing demonstration of Sadler and Green.
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Reference
Hillis, Maurice. 2011. Liverpool porcelain 1756-1804, chapter 7.