| 1903 Tom Yawkey born in Detroit, Michigan and raised and educated in New York and Connecticut |
1909 Jean (Hollander) Yawkey born in New York and raised and educated in Long Island |
1925 Tom Yawkey graduates from Yale University |
1930s Tom Yawkey quietly and anonymously supports a number of local charities throughout the Northeast and in Gerorgetown County, South Carolina (winter home) |
| 1933 Tom Yawkey purchases the Boston Red Sox |
1940s Jean (Hollander) Yawkey actively volunteers for the American Red Cross during World War II |
1940s Tom Yawkey quietly begins to support Georgetown Memorial Hospital in South Carolina |
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| 1944 Tom and Jean Yawkey marry in Georgetown, South Carolina |
1952 Tom and Jean Yawkey help to establish the Agganis Foundation Scholarship Program |
1953 Tom and Jean Yawkey begin to support the National Baseball Hall of Fame and Museum |
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| 1953 Tom and Jean Yawkey adopt the Jimmy Fund and the work of Dr. Sidney Farber as the primary charity of the Boston Red Sox |
1968 Tom Yawkey elected to the Board of Directors of the National Baseball Hall of Fame and Museum |
1970 Tom and Jean Yawkey purchase property and construct the Tara Hall Home for Boys in Georgetown, South Carolina near their winter home |
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| 1976 Tom Yawkey passes away in Boston |
1976 Tom Yawkey wills 20,000 acres of land in South Carolina, now known as the Tom Yawkey Wildlife Center, to the State of South Carolina and establishes a Foundation to maintain the Center |
1980s Jean Yawkey purchases the first refrigerated truck for the Greater Boston Food Bank's Second Helping Program |
1980 Tom Yawkey elected as a member of the National Hall of Fame and Museum, the last owner elected |
| 1982 Jean Yawkey establishes Yawkey Foundation II Jean Yawkey begins annual support of the Boys and Girls Clubs of Boston |
1984 Jean Yawkey elected to the Board of Directors of the National Baseball Hall of Fame and Museum, the first woman elected to this Board |
1986 Jean Yawkey establishes a baseball scholarship program at Boston College |
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| 1986 Jean Yawkey purchases property for The Family Inn in Brookline, Massachusetts |
1988 Jean Yawkey sponsors the Jackie Robinson Foundation national tour in Boston |
1990 Jean Yawkey honored as the New England Woman of the Year by the Boston Chamber of Commerce at Symphony Hall |
1990 The Greater Boston Junior Park League is renamed The Yawkey Baseball League |
| 1992 Jean Yawkey passes away in Boston |
1993 The Yawkey Foundations, in collaboration with the Red Sox, establish the Rookie League and the RBI League in Boston's Inner-city |
1994 Yawkey/Jackie Robinson Foundation annual scholarship established |
2002 Historic sale of the Boston Red Sox results in a significant expansion of Yawkey Foundation II's assets |