Here is nice picture of a portrait bust by Joseph Wilton of
Thomas Dawson, 1st Baron Dartrey which was recently donated to Yale
Centre for British Art (from story posted 12 April 2007)
http://www.theartnewspaper.com/article01.asp?id=611&teaser=0

Also a portrait of a young Joeseph Wilton by Joshua Reynolds
http://www.npg.org.uk/live/search/portrait.asp?LinkID=mp04878&rNo=0&role=sit

Canoe trip of Alan Judge down the Dromore from Ballybay through
Dartrey Forest with nice picture of the temple sculture 2005
http://www.canoefocus.demon.co.uk/oldarticles/featuresdublin.html

nice example of Wilton sculture Bust of a Man" 1758 from Getty museum LA
http://www.getty.edu/art/gettyguide/artObjectDetails?artobj=1364&handle=li

another example of work...sketch for gen wolfe monument
http://www.archiv.umontreal.ca/Galeries/P0059/pages/P0059FG178.htm
James Wolfe bust by Joseph Wilton circa 1760
http://www.npg.org.uk/live/search/portrait.asp?LinkID=mp04900&desc=&grp=&lDate=&\
eDate=&occ=30%3BMilitary&medium=sculpture&name=&search=as&rNo=0&role=sit
"Posthumous; stated to be based on a servant of Lord Gower's who was
very like Wolfe. Wilton found the hero's face 'too much distorted'
when his coffin was opened at Portsmouth"

joseph wilton at work, with student
"Title: John Hamilton Mortimer with Joseph Wilton and a Student, c.
1760-65 Medium: Oil on Canvas "Joseph Wilton, and an unknown student
drawing at the Duke of Richmond's Cast Gallery. This collection was a
gallery of plaster casts after the Antique that was made available to
students between 1758 and 1762 under the direction of the eminent
sculptor Joseph Wilton. "
http://www.racollection.org.uk/ixbin/hixclient.exe?submit-button=search&search-f\
orm=object/object_month_february2007.html&_IXSESSION_=Af95hv1w50v

broken Statue of William Pitt, the Elder, Earl of Chatham, 1770
http://www.amrevonline.org/museum2/index.cgi2?a=object&page=1&item_id=4055&show1\
=1&show2=1

short bio
http://www.cartage.org.lb/en/themes/biographies/MainBiographies/W/Wilton1/wilton\
.htm
"English sculptor. He trained in Flanders and with Pigalle in Paris,
then was in Italy from 1747 till 1755. On his return to London he
rapidly became successful, carved the state coach (still in use) for
the coronation of George III (1760), and was then appointed sculptor
to the King (1764). He was an intimate friend of the architect Sir
William Chambers, with whom he often collaborated, and he was one of
the original members of the Royal Academy. His portraits are generally
regarded as his best works, his monuments showing him hesitating
between various styles...."
------------
other example
hints at the plaster work on walls (not as detailed of course) which
could have been part of scultures comission for temple!!?.
http://www.artnet.com/Artists/LotDetailPage.aspx?lot_id=BA26F86075D058BC

decorative plaster - "papier mâché" connection
http://aic.stanford.edu/jaic/articles/jaic32-02-007_2.html
"One unsubstantiated account states that William Wilton, father of the
noted English sculptor Joseph Wilton, established a papier mâché
factory and employed "people from France." This account seems credible
in view of the facts that Wilton was a decorative plasterer active by
1722 and a manufacturer of apparent means who could send his son to
study in France and Italy. Perhaps it was Wilton's laborers who
subsequently set up their own businesses and gave the trade a French
name and association that was to continue" details process...

wikipedia info on Joseph_Wilton
http://en.wikipedia.org/wiki/Joseph_Wilton

Ornamental Plaster at work
http://www.traditional-building.com/brochure/members/1ornamentalplaster.shtml