As of this time I do not know of any postal or e-mail address that you can send mails directly to Henrietta. But I do have two addresses that you might want to try to have your mail forwarded to Henni through them. They are the Hungarian Gymnastics Federation (of course), and South Texas Gymnastics Academy (where she have been working out while living in San Antonio). Their addresses, respectively, are:
Magyar Torna Szoevetseg
Dozsa Gyorgy ut 1-3
1143 Budapest
Hungary
Henrietta Onodi
c/o South Texas Gymnastics Academy
4335 Vance-Jackson # 3
San Antonio, TX 78230
