Your replacement I-94 would be for your last entry to the U.S. not all entries. See an attorney if you need assistance with this filing.
DC Metro Immigration Law PLLC, Arlington, VA (202) 470-1004 provides the above for information purposes only and does not construe or intend to provide any legal advise or an attorney-client relationship. You should contact an attorney to discuss your personal circumstances and for legal advice.
When filing the Form I-90 to request the replacement I-94 card you should specify that you are requesting that they check their records from October and November. Also, it shouldn't be that difficult for you to research old bank statements and itineraries for flights to figure out the exact date of travel. If you know the airline, maybe they can search their records.
I agree with my colleagues.
J Charles Ferrari Eng & Nishimura 213.622.2255 The statement above is general in nature and does not constitute legal advice, as not all the facts are known. You should retain an attorney to review all the facts specific to your case in order to receive advise specific to your case. The statement above does not create an attorney/client relationship. Answers on Avvo can only be general ones, as specific answers would require knowledge of all the facts. As such, they may or may not apply to the question.