File contains figures and maps created by the Catfish Creek Conservation Authority, including the following items:
-Figure No. 1: Profile section from 1 mile southwest of Aylmer, Ontario to 1 mile southwest of Corinth, Ontario.
-Figure No. 3: Profile section from Luton to Concession 10 Lot 8 South Dorchester Township.
-Figure No. 4: Profile section along Concession 8-9 Road (Malahide Township) northeast from Aylmer.
-Figure No. 5: Profile section along Concession 9-10 Road (Malahide Township) through area south of Aylmer Sta. and Springfield.
-Figure No. 6: Profile section along the south town line, South Dorchester Township (based on Well Logs from both sides of the town line).
-Figure No. 7: Profile Section from Concession 11 Lot 3 (south end), South Dorchester Township to Delmer, Ontario.
Map No. 3: Thickness of Pleistocene Deposits. Shows Aylmer, Springfield and Brownsville, Ontario.
Map No. 6: Contour Map of the Lower (2nd) Artesian Groundwater Horizon, showing the top of the groundwater horizon in well, the possible shoreline of the interglacial Lake Erie.
Map No. 7: Contour Map of the top of the Main Aquifer in the 1st Artesian Groundwater Horizon, showing the top of the aquifer above sea level in well or test-hole area with predominantly dry test-holes in pleistocene deposits.
Map No. 9: Water Table Piezometric Surface of Artesian Water Location of Wells.
County of Elgin Road Classifications Map, created by A.M. Spriet & Associates for the County of Elgin's Road Needs Study. Shows existing and proposed roads in the following classifcations: inter-centre connector, special industries service, topographical barrier, summer resort service, extension or urban arterials, area service and deletions. The reverse shows a map of the Desirable County Road System.
File contains programs from local events, likely attended by Marietta Roberts, including the following items:
-Program for the St. Thomas Jaycee Week Banquet held on September 17, 1975.
-Program for the official opening of the addition to Locke's Public School, held on October 9, 1975.
-Program for a banquet to honour Warden Albert H. Liebner held on October 17, 1975.
File contains miscellaneous ephemera, correspondence, programs and a photograph, collected by Marietta Roberts, who was a former employee at Alma College. Includes records relating to the 100th Anniversary of Alma College in 1977, a program for the 1966 May Day Festival, a May 1978 Alumnae Bulletin, material related to a 2011 alumnae reunion in Toronto, Ontario and two pieces of correspondence from Flora Sifton, Principal, to Marietta Roberts concerning the former's appointment as a staff member. File also includes a card of thank you from Flora Sifton upon her retirement, and a 1978 Christmas Greeting card from Elizabeth Bone, Principal.