For nationwide indexes to the periodicals listed in this section and other family history periodicals, see:
Periodical Source Index (PERSI). Ft. Wayne, Indiana: Allen County Public Library Foundation, 1987-. (Family History Library book 973 D25per;  1847-1985]; index to annual volumes on fiche 6016864 [15 fiche] 1986-1990).) Indexes thousands of family history periodicals. Includes Canadian periodicals in French and English. Annual indexes have been published yearly since 1986. For further details, see the PERiodical Source Index Resource Guide (34119).
The major periodicals and magazines helpful for research in Ontario include:
The Canadian Genealogist. 1979-88. Ten Volumes. Published by Generation Press, 172 King Henry's Boulevard, Agincourt, Ontario, CANADA M1T 2V6. (Family History Library book 971 D25cg; not on microfilm.) This is more about research in Ontario sources than about other provinces.
Families. 1963-. Published by the Ontario Genealogical Society, 40 Orchard View Boulevard, Suite 102, Toronto, Ontario, CANADA M4R 1B9. (Family History Library book 971.3 B2f; not on microfilm.) This well-edited journal focuses on research in Ontario sources, but it sometimes includes articles on research in other provinces and in national sources.
Ontario History (formerly Ontario Historical Society Papers and Records). 1899-. Published by the Ontario Historical Society, 34 Parkview Avenue, Willowdale, Ontario, CANADA, M2N 3Y2. (Family History Librry book 971.3 B2o; some volumes on film 105405 and 1,415,255-57.) Cumulative indexes by author and subject. Includes genealogies, history, immigration, land records, and Loyalists.
The Ontario Register. 1968-. Published by Hunterdon House, 38 Swan Street, Lambertville, New Jersey 08530 USA. (Family History Library book 971.3 B2or; v. 3 onfilm 908001 items 3-4.) Irregular. Transcripts of births, marriages, deaths, notices, petitions, and lists in the 1800s. Each volume includes an index of persons and places.
Several branches of the Ontario Genealogical Society have their own publications. A good example is:
Ottawa Branch News, 1971-. Published by the Ottawa Branch, OGS, P.O. Box 8346, Ottawa, Ontario CANADA K1G 3H8. (Family History Library book 971.384 D25o; not on microfilm.)