Reporting Social Security Distribution to IRS?

Due to my father's passing in 2014, I received a portion of his last Social Security check that was issued and split with my brother, sister. I and received a SSA 1099 form after I submitted and received a federal income tax return for 2014. Do I prepare an amendment and file the form (back) to IRS in order to take care of this matter? The check amount was under $500.

By Keith L