It appears that by August 1862 Ferguson & Urie are now concentrating the business solely on artistic stained glass windows and no longer involved in the plumbing trade.

 The Argus, Melbourne, Thursday 21^st August 1862, page 3.

“STAINED and PAINTED GLASS WINDOWS, for churches, halls, &c, MADE to any design, Designs submitted, and estimates given. Ferguson and Urie, Curzon street, North Melbourne.”