2009 - The American Locomotive Company's Historical and Technical Society is formed.
June 2012 - ALCO Historical and Technical Society opens its museum on Maxon Road Ext. in Schenectady.
September 2012 - Beverly Lentz Taylor Geiger comes from her home in Louisville, Kentucky to present the model of the M7 self-propelled tank destroyer and two boxes of various artifacts and ephemera to the ALCO Museum.
October 2012 - ALCO Museum closes for the season.
Spring 2013 - ALCO Museum fails to reopen for the 2013 season and begins looking for a new home.
February 2014 - ALCO Museum moves into its new space at the Walter Elwood Museum in Amsterdam.
April 2015 - Beverly Lentz Taylor Geiger passes away at the age of 91 in Louisville.
September 2015 - William Taylor, Geiger's son, informs the ALCO Museum that he wants the M7 model returned as well as his family's other items because the facility has moved out of Schenectady.
October 2015 - ALCO Museum president Matt Giardino says his group considers the model and all the other items a gift and will not return them.
August 2018 - Taylor files a lawsuit to have the model and other of his grandfather's personal papers returned to the family.
April 2019 - Giardino agrees to return the M7 model and other items to Taylor, with some stipulations.
Also see: ALCO Museum will return Lentz M7 model