Hello Bill,
I mailed all the info I have on the Ilas family to you yesterday morning. I got your e-mail and had a few thoughts.
Your paid passage receipt for 1911 for John Ilas was for John Jr. he is enumerated in 1930 census as having arrived in 1911. All the census listings for John Sr. list his year of arrival as 1880's (although the year varies).
I've worked on the assumption that John Sr. and John Jr. were father and son because that is my father's recollection. However, I will admit that there may be a different relationship. They may have been Uncle/Nephew for example. Also, my father didn't know much about his grandfather (John Jr) and his family because his father (Martin) didn't talk about him. He believes that John Jr. had a falling out with his family. He knows that John Jr's second marriage (to Mary Gutysh) was very stressful on his sons. He recollects that they did not get along with Mary Gutysh at all. Perhaps that explains why all the sons (except possibly Joseph) moved to Ohio when they came of age. My father also recalls questions about the circumstances surrounding Ilona's (Helen's) death. He did mention that he remembers innuendo/suspicion that John Jr. may have been involved in Ilona's death (Maybe he killed her?) He doesn't recall any more than that.
I throw this out for thought:
John Jr. and George/Mary/Sophie (Anna) may have been cousins.
John Jr. may have been disowned by his family, possibly because of Ilona's death, or maybe because he remarried, or possibly he had an affair with Mary Gutysh while Ilona was still alive. It appears he was estranged from his sons.
I have more thoughts but I have to go to work! Ha Ha!
Looking forward to further correspondence
Bob Ellis