Alex was born on August 15, 1938, to the late Louis and Cecelia (Reisinger) Neussendorfer in Collegeville, Stearns County. Alex's father was first married to Mary Janker , who died during the 1918 influenza epidemic. He then married Cecelia Reisinger in 1922.

Alex always had an affinity for things mechanical, and chose manufacturing as a working career. In 1959, he was employed in Minneapolis by a company making printed wiring boards, which was then a new industry.

He was drafted into the US Army in 1961, and assigned to the 54th Transportation Company, for helicopter maintenance. Following an honorable discharge in 1963, he returned to his employer to continue the building of printed wiring boards, used by various electronic companies, and NASA's Space Program. Product he helped build were on the NASA flights, including moon missions, where one board remains on the moon in a surveying module.

On July 10, 1965, in Gilman, Minnesota, Alex married Lucille Cassie Cielinski. They began married life in Richfield, Hennepin County, MN, where their daughters Lisa and Gail were born.

By 1969, his employer's company was purchased by Control Data Corporation, to build product for a new supercomputer. His department produced the lithographic and numerical control tooling. Prior to 1990, he was responsible for the conversion of the tooling methods from manual to CAD/CAM and laser image generation, as this technology became available. As part of this effort, he enrolled at the University of Minnesota, also Control Data's computer programming school, to be able to write software.

In 1990, Control Data stopped building computer hardware, and the facility was sold to private investors. After several years, he was asked to be a Product Engineer, which was a technical liaison to customers on design and fabrication issues, also defining materials and manufacturing methods. Many of these were unconventional projects, requiring a willingness and ability to innovate. This led to developing some manufacturing methods which were put under patent protection, becoming the intellectual property used his employer and a Japanese company for technology exchange. These were the basis for building semiconductor packages, which were a smaller and more complex type of printed wiring board. The facility was moved to Chippewa Falls Wisconsin, he was given the choice of relocating or being terminated. Refusing to re-locate, he was then offered a tolerable severance package, on condition he not be involved in any litigation against his employer as his name was on the patent papers.

A small Minneapolis company that produced precision images on lithographic film and glass recruited him, where he stayed three years until retirement in 2001, at which time he and Lucille moved to Sauk Rapids, MN.

Alex is survived by his wife Lucille, daughters Lisa (Scott) Brumm and Gail Amundson, Grandchildren Rebecca (Domonic Forsman) and Jason (Drew) White.

He was preceded in death by his parents, and siblings: Marie (John) Eisenschenk, Paul(Magdaline) Neussendorfer, Cecilia Elizabeth, died as an infant, Agnes (Oswald) Winter

Aloys (Eleanor) Neussendorfer, Hildegard (James) Hoag, Bernard (Lenore) Neussendorfer, Bernardine (Kenneth) Braeger, Edgar (Ann) Neussendorfer, Frances (Robert) Muggli, Margaret Billias and Cyril (Esther) Neussendorfer.