There are collections for all listed congregations. Guides for Congregational names without hyperlinks are not available on the web.

1. Arcade
2. Baden (merged with Geiger to form Wilmot; see no.52)
3. Berea (merged with Moorefield to become Community; see no. 17)
4. Bethel
5. Biehn (merged with Blenheim to form Nith Valley; see no.51)
6. Blenheim (merged with Biehn to form Nith Valley; see no.51)
7. Bloomingdale
8. Cedar Grove
9. Clarence Center (N.Y.)
10. Cressman/Breslau
11. Elmira
12. First Mennonite (Kitchener)
13. Floradale
14. Geiger (merged with Baden to form Wilmot; see no.52)
15. Hawkesville
16. Latschar/Mannheim
17. Community (Moorefield; name changed after merger with Berea (no. 3)
18. Hagey/Preston
19. Rainham
20.  
21. Shantz
22. South Cayuga
23. St. Jacobs
24. Moyer/The First Mennonite Church (Vineland)
25. Wanner
26. Waterloo/Erb St.
27. Weber/Pioneer Park
28. Wideman
29. Zurich
30. Bethel (Bothwell)
31. Bright Mission (No records held; see Mennonite Conference of Ontario Rural Mission fonds)
32. Fort Stewart
33. Glen Allan
34. Hagerman
35. Little Ireland Mission (No records held; see Mennonite Conference of Ontario Rural Mission fonds)
36. Markstay Mission (No records held; see Mennonite Conference of Ontario Rural Mission fonds)
37. Minden
38. Danforth
39. Calvary Mennonite (Monetville, ON)
40. Morningside
41. Warden Park/Warden Woods Community Centre
42. Discontinued Congregations
    1. Almira (Unionville)
    2. Ellesmere (Scarborough)
    3. Glasgow (Stouffville)
    4. Bertie
    5. Blandford
    6. Mountain
    7. Roseville/Detweiler
    8. Altona
    9. Wallace
    10. Dungannon
43. Calvary Mennonite (Ayr)
44. Rockway
45. London/Valleyview (see V-8)
46. Hanover/Hanover-Chesley
47. Listowel
48. Waters (transferred to United Mennonite Conference)
49. Thames Valley
50. Brussels
51. Nith Valley (amalgamation of Biehn and Blenheim)
52. Wilmot (amalgamation of Baden and Geiger)
53. Steele's Avenue
54. Rouge Valley (amalgamation of Cedar Grove and Steele's Avenue)
55. Waterloo North
56. Hmong Christian Church
57. Hunta
58. Zion (Elmira)
59. Montreal Mennonite Fellowship
60. Joliette
61. Rawdon
62. Rouyn-Noranda
63. Grace Lao Mennonite Church
64. Kingston Mennonite Fellowship
65. Durham Mennonite Fellowship
66. Guelph Mennonite Church (also affiliated with Conference of United Mennonite Churches of Ontario)

Last modified 31-Jul-2009 by Laureen Harder-Gissing