Ezra 2:2

2:2 They came with Zerubbabel, Jeshua, Nehemiah, Seraiah, Reelaiah, Mordecai, Bilshan, Mispar, Bigvai, Rehum, and Baanah.

The number of Israelites was as follows:

Ezra 4:8-9

4:8 Rehum the commander and Shimshai the scribe wrote a letter concerning Jerusalem to King Artaxerxes as follows: 4:9 From Rehum the commander, Shimshai the scribe, and the rest of their colleagues – the judges, the rulers, the officials, the secretaries, the Erechites, the Babylonians, the people of Susa (that is, the Elamites),