|  | 1989 Berlin wall falls 1991 Persian Gulf War 1991 Break-up of the Soviet Union 1994 Channel tunnel opens to traffic 1997 Scotland Scientists clone a sheep | 1945 Atomic bomb detonated (Hiroshima) 1950 Korean War begins 1964 - 1973 Vietnam War 1969 Armstrong first person on moon 1986 Nuclear disaster at Chernobyl | 1903 Wright brothers 1st plane flight 1912 Titanic sinks on maiden voyage 1914 - 1918 World War I 1922 USSR formed by Soviet states 1939 - 1945 World War II | 
|  |  |  |  |  |  |  |  |  | 
|  |  |  |  | |||||
|  |  |  | Donald A. Ritchie b. d. | |||||
|  |  |  | ||||||
|  |  | Timothy Allen Ritchie b. Private d. | ||||||
|  |  |  |  |  | ||||
|  | Kimberly Gail Ritchie b. Private d. |  |  | Gail Cassey b. d. | ||||
|  |  | |||||||
|  | Timothy Kyle Ritchie b. Private d. |  |  |  |  | Harry Warren Sharp b.1908 Camden, Ray, MO d.1973 Los Angeles, CA |  | |
|  |  |  |  | |||||
|  |  |  | Lawrence Clayton Sharp b. Private d. |  | Angeline Louisa O'Leary b.1912 Castleton, Reno, KS d.1986 El Monte, LA, CA |  | ||
|  |  |  | ||||||
|  |  | Elizabeth Anne Sharp b. Private d. |  |  | Lyle Strand b. d. | |||
|  |  |  |  |  | ||||
|  |  |  | Gayle Carol Strand b. Private d. |  | Liz White b. d. | |||
|  |  | |||||||
|  |  |  | ||||||