| 190808 | Born in Kansas |
| 1923 | Sells his favorite sheep for $10 and pays $7.5 for his first airplane ride with WWI pilot, Preacher Smith |
| 1929 | Smith and three others started a flying circus |
| 1933 | They sold out to the Inman Brothers Flying Circus and Smitty hired out to them |
| 19366 | Smitty set a record for flying more than 26,000 passengers for the flying circus |
| 19377 | Came to Alaska after M.D. "Kirk" Kirkpatrick, president of Cordova Air Service offered him a job as a pilot |
| 1937 | Glacier Pilot Bob Reeve gave Merle Smith the nickname "Mudhole" after Smitty hit a hole on takeoff and his Stearman C3B biplane nosed over into the muddy runway. The nickname would stay with him for life. |
| 1938 | Married sweetheart Bertha |
| 1939 | Became president of Cordova Air Service after Kirkpatrick was killed in an accident |
| 1942 | Goes to work for Morrison-Knudson and Harold Gillam and flies mail and cargo along several routes throughout Alaska, mostly in support of the war effort. |
| 1943 | Flight to Chisana to bring food and supplies to a mining settlement that had not been re-supplied for 8 months |
| 1944 | Returns to Cordova to rebuild the Cordova Air Service |
| 1950 | Is grounded because of health problems but continues to build Cordova Air Service into one of Alaska'a most successful airlines. |
| 1952 | Cordova Air Service merges with Christensen Flying Service and becomes Cordova Airlines |
| 1968 | Cordova Air Service merges with Alaska Airlines, Mudhole serves as director and vice-president of Alaska Airlines until mid 1973 |
| 1977 | Inducted into the OX5 Aviation Pioneers Hall of Fame |
| 1981 | Merle K. "Mudhole" Smith dies on June 16 |