Manzanares then began his business career with Chick, Browne, and Co. in
Kansas City, the birthplace of the firm. He held a sales position there for a brief period, and then quickly relocated to New York City, where he continued his college education. While in New York, Manzanares began working at a bank. He learned valuable skills during his year in New York which resulted in a career leap upon his return to Kansas City. where he was named partner of Chick, Browne, and Co. Throughout his years working for the firm, Manzanares opened a number of markets throughout
Kansas Pacific,
Atchison, Topeka and Santa Fe Railway train routes. In 1879, the firm was renamed to Browne and Manzanares, with Manzanares now a full partner. The firm was then moved to
Las Vegas, New Mexico. Though New Mexico was still in a period of transition, Manzanares wasted no time in working to boost the economy. With the help of other members in the community, Manzanares planned and founded Las Vegas Waterworks Association. He did not stop there, however, and soon aided in the development of financial infrastructure of the state by opening
First National Banks in Las Vegas, Santa Fe, and
Raton. ==A political transition==