John Gill Commentary Ezra 8:19

"and Hashabiah, and with him Jeshaiah of the sons of Merari, his brethren and their sons, twenty;" — Ezra 8:19 (ASV)

And Hashabiah, and with him Jeshaiah of the sons of Merari ,
&c.] These were of the same division of Levites as Sherebiah:

his brethren and their sons, twenty ;
these thirty eight, with those they came with, were all Levites; the Nethinims follow.