Often cited as the first man to die during the construction of Boulder Dam.
He was actually scouting for a location for the dam when he drowned.
1900 census: res St. Louis, Missouri (Gregory J. Tierney)
7 May 1909: married at Poplar Bluff, Butler, Missouri.
1910: res St. Louis, Missouri (John J. Tierney)
1920: res Morenci, Greenlee Co., Arizona (John G. Tierney)
A family tree on Ancestry.com gives his full name John Gregory Joseph Tierney.
From E.T. (47514618): On Dec. 20, 1921, a crew surveying locations for the dam got caught in a flash flood, and a man named John Gregory Tierney was lost forever in the raging Colorado River, one of the first casualties of the project.
Then on Dec. 20, 1935, 14 years later to the day, the job site suffered its last fatal accident, when a worker fell to his death from one of the two intake towers on the Arizona side of Black Canyon. That man was Patrick William Tierney, J. G. Tierney’s only son.
He was actually scouting for a location for the dam when he drowned.
1900 census: res St. Louis, Missouri (Gregory J. Tierney)
7 May 1909: married at Poplar Bluff, Butler, Missouri.
1910: res St. Louis, Missouri (John J. Tierney)
1920: res Morenci, Greenlee Co., Arizona (John G. Tierney)
A family tree on Ancestry.com gives his full name John Gregory Joseph Tierney.
From E.T. (47514618): On Dec. 20, 1921, a crew surveying locations for the dam got caught in a flash flood, and a man named John Gregory Tierney was lost forever in the raging Colorado River, one of the first casualties of the project.
Then on Dec. 20, 1935, 14 years later to the day, the job site suffered its last fatal accident, when a worker fell to his death from one of the two intake towers on the Arizona side of Black Canyon. That man was Patrick William Tierney, J. G. Tierney’s only son.
Often cited as the first man to die during the construction of Boulder Dam.
He was actually scouting for a location for the dam when he drowned.
1900 census: res St. Louis, Missouri (Gregory J. Tierney)
7 May 1909: married at Poplar Bluff, Butler, Missouri.
1910: res St. Louis, Missouri (John J. Tierney)
1920: res Morenci, Greenlee Co., Arizona (John G. Tierney)
A family tree on Ancestry.com gives his full name John Gregory Joseph Tierney.
From E.T. (47514618): On Dec. 20, 1921, a crew surveying locations for the dam got caught in a flash flood, and a man named John Gregory Tierney was lost forever in the raging Colorado River, one of the first casualties of the project.
Then on Dec. 20, 1935, 14 years later to the day, the job site suffered its last fatal accident, when a worker fell to his death from one of the two intake towers on the Arizona side of Black Canyon. That man was Patrick William Tierney, J. G. Tierney’s only son.
He was actually scouting for a location for the dam when he drowned.
1900 census: res St. Louis, Missouri (Gregory J. Tierney)
7 May 1909: married at Poplar Bluff, Butler, Missouri.
1910: res St. Louis, Missouri (John J. Tierney)
1920: res Morenci, Greenlee Co., Arizona (John G. Tierney)
A family tree on Ancestry.com gives his full name John Gregory Joseph Tierney.
From E.T. (47514618): On Dec. 20, 1921, a crew surveying locations for the dam got caught in a flash flood, and a man named John Gregory Tierney was lost forever in the raging Colorado River, one of the first casualties of the project.
Then on Dec. 20, 1935, 14 years later to the day, the job site suffered its last fatal accident, when a worker fell to his death from one of the two intake towers on the Arizona side of Black Canyon. That man was Patrick William Tierney, J. G. Tierney’s only son.
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