Mariano Sabino Otero was a Delegate from the Territory of New Mexico, nephew of Miguel Antonio Otero (I)

Miguel Antonio Otero (I)

Miguel Antonio Otero was a prominent Spanish politician of the New Mexico Territory and instrumental in the economic development of the territory.- Early life :...

 and cousin of Miguel Antonio Otero (II)

Miguel Antonio Otero (II)

Miguel Antonio Otero , nicknamed "Gillie," was governor of New Mexico Territory from 1897 to 1906 and in later life the author of several books on Western lore...

.

Born in Peralta, New Mexico

Peralta, New Mexico

Peralta is a town in Valencia County, New Mexico, United States. Prior to its incorporation on July 1, 2007, it was a census-designated place...

, Otero attended private and parochial schools and St. Louis University, Missouri.
He engaged in commercial pursuits and stock raising, and subsequently became a banker.
He was probate judge of Bernalillo County 1871-1879.
He was also nominated by the Democratic State convention as a candidate for Delegate to the Forty-fourth

44th United States Congress

The Forty-fourth United States Congress was a meeting of the legislative branch of the United States federal government, consisting of the United States Senate and the United States House of Representatives. It met in Washington, D.C. from March 4, 1875 to March 4, 1877, during the seventh and...

 Congress, but declined.

Otero was elected as a Republican

Republican Party (United States)

The Republican Party is one of the two major contemporary political parties in the United States, along with the Democratic Party. Founded by anti-slavery expansion activists in 1854, it is often called the GOP . The party's platform generally reflects American conservatism in the U.S...

 to the Forty-sixth

46th United States Congress

The Forty-sixth United States Congress was a meeting of the legislative branch of the United States federal government, consisting of the United States Senate and the United States House of Representatives. It met in Washington, D.C. from March 4, 1879 to March 4, 1881, during the last two years of...

 Congress (March 4, 1879-March 3, 1881).
He declined to be a candidate for renomination in 1880, but instead engaged in his former business pursuits.

Otero served as commissioner of Bernalillo County 1884-1886.
He was an unsuccessful candidate for election in 1888 to the Fifty-first

51st United States Congress

The Fifty-first United States Congress, referred to by some critics as the Billion Dollar Congress, was a meeting of the legislative branch of the United States federal government, consisting of the United States Senate and the United States House of Representatives. It met in Washington, D.C...

 Congress and in 1890 to the Fifty-second

52nd United States Congress

The Fifty-second United States Congress was a meeting of the legislative branch of the United States federal government, consisting of the United States Senate and the United States House of Representatives. It met in Washington, D.C...

 Congress.
He moved to Albuquerque, New Mexico

Albuquerque, New Mexico

Albuquerque is the largest city in the state of New Mexico, United States. It is the county seat of Bernalillo County and is situated in the central part of the state, straddling the Rio Grande. The city population was 545,852 as of the 2010 Census and ranks as the 32nd-largest city in the U.S. As...

, in 1889, and was interested in the manufacture of sulphur and engaged in banking.
He died in Albuquerque, and was interred in Santa Barbara Cemetery.

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