WIDEMAN, Lewis Conrad (1850-1917) was born in Germany on 29 March 1850 and emigrated to Canada in 1865. He worked as an architect and contractor in Guelph, Ont. and was also the owner of a planing mill, an asset which enabled him to not only design but to efficiently construct a variety of industrial and residential buildings in that city between 1897 and 1905. He moved to the town of Charlton in northern Ontario in 1907 and continued to practise until 1911, but he appears to have later abandoned his career as an architect and pursued his interests in mining development in the Cobalt area. He died in Dundalk, Ontario on 1 March 1917 and was buried at Woodlawn Cemetery in Guelph (obituary in the Guelph Evening Mercury, 2 March 1917, 5).
L.C. WIDEMAN (works in Guelph unless noted)
GROVE STREET, residence for Thomas Newstead, 1897 (C.R., viii, 9 Sept. 1897, 1, t.c.: Guelph Daily Mercury, 27 Oct. 1897, 2)
ST. JAMES WARD SCHOOL, addition, 1900 (C.R., xi, 2 May 1900, 4)
RAYMOND MANUFACTURING CO., Yarmouth Street at Suffolk Street, factory, 1900 (C.R., xi, 25 July 1900, 3, t.c.)
ROBERTSON-TAYLOR CO., factory, 1900 (C.R., xi, 8 Aug. 1900, 2, t.c.)
FORDWICH, ONT., Presbyterian Church, 1901 (C.R., xii, 20 March 1901, 2, t.c.)
GUELPH AXLE WORKS, Wellington Street, addition, 1902; addition, 1907 (C.R., xiii, 26 March 1902, 2, t.c.; xviii, 10 April 1907, 4, t.c.; Weekly Mercury [Guelph], 20 Nov. 1902, 9)
WOOLWICH STREET, residence for George A. Dickenson, 1902 (C.R., xiii, 30 April 1902, 8; Weekly Mercury [Guelph], 20 Nov. 1902, 9)
GUELPH LIGHT & POWER CO., addition to power station, 1902 (C.R., xiii, 18 June 1902, 2, t.c.)
MARKET STREET, livery barn for Edward Palmer, 1902 (C.R., xiii, 20 Aug. 1902, 6)
PAGE-HERSEY IRON & TUBE CO., LTD., York Road, several new factory and industrial buildings, 1902-03 (Berlin News Record (Kitchener), 14 Oct. 1902, 1, descrip.)
CORK STREET, residence for Samuel D. Thompson, 1902 (Weekly Mercury [Guelph], 20 Nov. 1902, 9)
WOOLWICH STREET, residence for Charles Pettiford, 1902 (Weekly Mercury [Guelph], 20 Nov. 1902, 9)
CARDEN STREET, refitting of the Hough Building with new facade, 1902 (Weekly Mercury [Guelph], 20 Nov. 1902, 9)
DUNDAS ROAD, residence for Mrs. Mulchinock, 1902 (Weekly Mercury [Guelph], 20 Nov. 1902, 9)
KATHLEEN STREET, three tenement houses for Henry Hughes, 1903 (C.R., xiv, 3 June 1903, 2)
DUTTON, ONT., Presbyterian Church, 1903 (C.R., xiv, 3 June 1903, 2)
CENTRAL SCHOOL, Dublin Street North, major addition for the Alexandra School, 1903 (Evening Mercury [Guelph], 30 Oct. 1903, 1)
R. & J.H. SIMPSON CO., Paisley Street, major addition to warehouse, 1903 (Evening Mercury [Guelph], 30 Oct. 1903, 1)
ST. DAVID'S WARD SCHOOL, Suffolk Street, 1903 (Evening Mercury [Guelph], 30 Oct. 1903, 1)
DUKE STREET, Hampshire Terrace, a row of houses for H. Hughes, 1903 (Evening Mercury [Guelph], 30 Oct. 1903, 1)
TOLTON BROTHERS LTD., Huskisson Street, factory, 1903 (Evening Mercury [Guelph], 30 Oct. 1903, 1)
LIVERPOOL STREET, residence for Robert Simpson, 1905 (C.R., xv, 8 Feb. 1905, 4)
DUNDALK, ONT., Public School, 1905 (C.R., xvi, 12 April 1905, 2)
PRINCE ALBERT, SASK., hotel for an unidentified client, 1905 (C.R., xv, 8 Feb. 1905, 4)
(works in Northern Ontario)
COBALT, ONT., Public School, 1908 (Cobalt Daily Nugget, 23 Jan. 1909, 15 & 16, illus. & descrip.)
ENGLEHART, ONT., Public School, 1909 (New Liskeard Speaker, 14 May 1909, 6; C.R., xxiii, 2 June 1909, 21)
CHARLTON, ONT., Public School, 1909 (Cobalt Daily Nugget, 9 Sept. 1909, 5, t.c.)
HAILEYBURY, ONT., a three storey commercial block for J.H. Stitt, with apartment units above, 1910 (Cobalt Daily Nugget, 20 April 1910, 8, t.c.)