I found two articles on My Heritage in the Detroit News and one in an Owosso paper using keywords Grand Trunk beet and Yohan. They say Simon, his son Frank and a man with the last name Yohan were killed and the two wives were severely injured. An article a few days later said the wives probably wouldn't survive, but a few days later it said they would attend the funeral at the Owosso Catholic church and the three would be buried next to each other in the Catholic cemetery. It said the brother of the wives, so it sounds like they were sister, was not with them. It also says that they had only arrived the month before. Since they died on June 8 or 9, it is fairly certain they arrived in 1911 at some time. The article about the funeral says Bahanla, if I recall correctly. That may be enough information to help.