The Marion Wagner files sub-series (vols. 29 à 42) was maintained by Diefenbaker's senior personal secretary, Marion Wagner. Unlike sub-series XII/A File room safe sub-series, it was kept separate from the PMO series: Numbered files. Although Wagner served with Diefenbaker from 1957-1967, this sub-series dates primarily from the PMO period. It seems likely that the files from the post-prime ministerial period were integrated into other sub-series in the Personal and Confidential Series. Although the files were disorganized and required some re-arrangement, for the most part, original titles were retained.
Of particular interest in this sub-series are the political files to be found under Elections and Progressive Conservative Party. This sub-series also includes Diefenbaker's finance material which is filed under Diefenbaker, Rt. Hon. John G.
This sub-series consists mainly of subject files and nominal files.
Subjects vary widely and include, among others, agriculture; agriculture - Farm Credit Corporation; agriculture - March to Ottawa; agriculture - National Farmers Union; air transportation; Avro Arrow; Bank of Canada; Brazilian Traction; British Columbia Airlines; broadcasting; Burlington Bridge; Canada Foundation; Canada House - new building; Canadian Broadcasting Corporation; Canadian Government Travel Bureau - London; Canadian National Railways; Canadian Retail Hardware Association; Canadianization; capital punishment; civil defence; civil service; closure; Columbia River; Common Market; Commonwealth Prime Ministers Conference, communism; Conference on Employment - submissions; Constitutional Conference; Criminal Code amendment; Dartmouth College; Dawson City Festival; defence; Defence Production Sharing; John G. Diefenbaker - finances; John G. Diefenbaker - genealogy; John G. Diefenbaker - invitations; John G. Diefenbaker - itineraries; John G. Diefenbaker - memberships; John G. Diefenbaker - speeches; the D.E.W. line; disarmament; disclosure legislation; divorce; dollar valuation; Dominion-provincial conferences; divorce; economic outlook 1958; economic prospects for 1960; the economy; the economy - interest rates; the economy - tight money; education; elections, engagements; ethnic groups and press; External Affairs; External Affairs - documents; Federal District Commission; Fiscal Investments Ltd.; forestry; Geneva Conventions; government appointments; House of Commons; hydro-electric power; immigration; India - long-term export financing; Indian Affairs; International Court; Liberal Party; Loyal Orange Association; manpower utilization - armed forces; Masons; mining - Denison Mines; monarchy; municipal development - St. John, New Brunswick; National Capital Commission; National Gallery; National Housing Act; NATO, New Democratic Party; nuclear weapons; Ontario budget; Ontario by-elections; OECD; Pacific Western Airlines; Parliament; Parliament - opening; Parliament - procedures; Parliament - Speech from the Throne; Parliamentary assistants; penitientiaries; Prime Minister's Office; Privy Council Office; Progressive Conservative Association; Progressive Conservative candidates; Progressive Conservative Government; Progressive Conservative Government - achievements; Progressive Conservative Government - Cabinet; Progressive Conservative Government - resignations; Progressive Conservative Government - survey of departmental policy; Progressive Conservative Party; Progressive Conservative Party - candidates and members; Progressive Conservative Party - Members of Parliament; provincial Executive Councils; Quebec; Quebec universities; railways - compulsory arbitration; receptions and luncheons; Royal Canadian Legion; Royal Canadian Mounted Police; Royal Commissions - general; Royal Commission - Banking and Finance; Royal Commission - Energy (Borden); Royal Commissions - Government; Royal Commission - Price Spreads; royal visits, satellite communication; Scotland; separatism; the Senate; Shriners; Social Credit - letter to the Governor General; social security - pensions; South Africa - apartheid; speeches; Stabilization Act; supplementary estimates; table of precedence; tariffs; tariffs - Tariff Board Act; taxation - income tax; Telepol survey - CTV television network; television licenses; Throne Speech debate; titles; trade - China; trade - U.K. - Canada; Trans Canada Telephone System; trips and engagements, unemployment; United Nations; United Nations - speech on Soviet imperialism; United States - space program; universities; uranium; Veterans Affairs; water pollution; West Indies; Western Development Museum; Wheat Board; wheat quotas; wheat transaction with China; and Yukon and the Northwest Territories.
There are over seventy files titled with the names of individuals, including Olive E. Diefenbaker, the Honorable Hugh John Flemming, Lester B. Pearson, and Marian Wagner. Many are the names of Canadian politicians.