William was an elder for the East Church parish of Perth - I've been through the session minutes and found many entries about his church life, including a few similar to the following from 1842:
28th April 1842 [CH2/585/1/366]
Dr. Henderson’s Commission as Elder for Town Council attested
There was produced a Commission from the Town Council of Perth appointing Dr. William Henderson one of this Session as their Elder to the next General Assembly for the attestation of the session, which was done by the Moderator in presence of the Session accordingly.
The Moderator and Clerk also Signed a Certificate that Dr. Henderson is an acting Elder as prescribed by Act of Assembly 1840.
The Sederunt closed with prayer.
Unfortunately I can't find a similar entry for 1843, though did find on 4th July 1843 a mention of William as being a part of a session meeting that demanded the summons of James Dewar, one of the elders, to appear before the session for having signed the Protest against the established church. Dewar was subsequently kicked of the list of elders.[CH2/585/1/377]
I'm afraid I'm up to my eyes in the next few days with an assignment for my university course which has to be on Saturday, though if I can get it knocked on the head in the next couple of days I might visit the Mitchell later in the week - to start work on yet another assessment! lol
"What was that mate? That was your life mate. Oh right mate...!"
Chris