For HD-Mar, as indicated in the relevant Cellosaurus page:
https://www.cellosaurus.org/CVCL_B367
it is no longer distributed by ATCC. But you may want to consider using the HD-Mar-2 cell line which was derived quite early on from HD-Mar and which is available from different sources including DSMZ:
https://www.cellosaurus.org/CVCL_2247
As for HT-1:
https://www.cellosaurus.org/CVCL_5T93
It is not distributed by anyone and I have not seen recent paper mentioning its use, so I am not sure you will manage to get hold of this cell line.