Looking for Taeko Mikami

Looking for an old friend from 1977 met in Mty. Mexico
She was lost in Mexico and helped her to find her friends we foun them after a month ! Now me and my family are lost in Tokio looking for her !!
Need help ! Back then she loved in Setagaya Ku

Met her in Monterrey Mexico back on 1977 when she was lost looking for some friends
We helped locate her friends. She is approximately in her mid 60's now. Me and my family came to Tokio and now we need help finding her ! She was living in setagaya ku back then !
If you can help me please !!! Thks !