Studies in the later years have also presented with opinions that the origin of the Abe clan could be sought through ABE no Hirafu (the Fujisaki genealogy) who forced the Ezo (natives in the northern districts of Japan) in Akita into submission; or by changing the reading of the name from "abe" to "ape" from the standpoint of identifying the Ezo with the ancestors of the Ainu tribe, the Abe clan could be seen as completely indigenous.
後世の研究では、秋田の蝦夷の帰順を得た阿倍比羅夫（藤崎系図）に起源をもとめたり、蝦夷をアイヌの祖先と同一視する立場からabeをapeと読み替えて完全な土着の先住民とみる説もある。