Final answer:
Miguel Antonio Otero Jr. contributed to New Mexico by serving as the Territorial Governor and advocating for statehood, modernizing infrastructure, improving education, and promoting economic development.
Step-by-step explanation:
Miguel Antonio Otero, also known as Miguel Antonio Otero Jr., was a prominent political figure and writer who contributed significantly to New Mexico. He served as the Territorial Governor of New Mexico from 1897 to 1906 and played a crucial role in advocating for statehood for New Mexico. Otero worked to modernize infrastructure, improve education, and promote economic development in the region. His efforts helped shape the political and social landscape of New Mexico during a critical period of its history.