Hello... I know you originally posted your message over 8 yrs ago, but wanted to chime in... My name is Pam and I too have Krueger relatives that were from the Chicago / Indiana area. My great grandfather Rudolph Krueger had a brother name Fredrick. Do you know if Fredrick's parents were Ida and Albert (both buried in Indiana). If so, please let me know so we can discuss further. Thanks! -Pam