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I don't subscribe to British Newspapers on line, and have only had a quick look...
Joshua appears to be a Mechanical Dentist (which could mean he made false teeth!) and ended up in Bath.

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Bath CHRONICLE and Weekly GAZETTE
Thursday 18 October 1798
Heading: No, 10, Queen-Street, Quern Square, Bath. PRINCE, DENTIST ARTIFICIAL TEETH
...... on the second line, Mi- Robert MOODY Bath ? might be his brother, and this Robert married in Bath, died in 1830 and his Will is on Ancestry, mentioning his wife and children.
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