[en] To continue their systematic study of odd-odd nuclei in the mass 160 region, and to further investigate the abnormal band-crossing frequencies observed in a number of odd-odd Tm and Lu isotopes, the authors studied ¹⁵⁸Ho and ¹⁵⁶Ho recently at the Lawrence Berkeley Laboratory. High spin states of ¹⁵⁸Ho and ¹⁵⁶Ho were populated using the ¹⁵⁰Nd(¹⁴N,6n) and ¹⁴⁸Nd(¹⁴N,6n) reactions at beam energies of 92 and 96 MeV, respectively. Gamma rays were detected by the 36 Ge detectors of the Gammasphere Phase I array. About 1 billion and 800 million triple- or higher-fold coincident events were collected for the ¹⁵⁸Ho and ¹⁵⁶Ho experiments, respectively. These data were sorted into cubes and analyzed by the computer code open-quotes LEVIT8Rclose quotes. The preliminary results have established multiple rotational bands in both nuclei. The band crossings, relative transition probabilities and other high spin properties especially concerning odd-odd nuclei will be discussed in comparison with either neighboring even-even, and odd-odd isotopes and isotones