In the beginning of this chapter we are given a broad outline of the Levitical family tree. There we see the familiar names of Moses and his siblings, Aaron and Miriam. Then we are specifically given the names of all of the high priests from Aaron through Jehozadak, the high priest at the time of the fall of Jerusalem.
Then we read about some of the Levites that served as ministers and servants of the tabernacle and temple. More details are given and the family tree begins to fill in a little more.
26. Aaron (The first High Priest)
27. Eleazar (The Line of High Priests until the captivity of Judah)
40. Azariah (executed the service in Solomon’s Temple)
48. Jehozadak (went into captivity)
26. Miriam (female)
25. MushiTo which son of Kohath does the following line (verses 22-24) belong? It is very similar to a line descended from Izhar, which is the line of Elkanah the father of Samuel, but it is not his exact line. Perhaps Amminadab was another son of Izhar. Samuel was not descended from Amminadab. We will read his genealogy tomorrow. A portion of it is found in I Samuel 1:1-2.)
Then we are given the names of Elkanah's sons. The two mentioned in verse 25 do not seem to be from the Elkanah of verse 26. In fact, Amasai, the son of Elkanah in verse 25 might be the same Amasai of verse 35 which we will read tomorrow. If so, this Amasai was a distant ancestor of Samuel and this Amasai had a brother named Ahimoth.
Then we read the names of Samuel and his brothers/half brothers. We are told in I Samuel 2:21 that Hannah gave birth to 3 sons and 2 daughters but the names of the daughters are not given. We also are not told which sons were Hannah's and which were Peninah's. We see also that Samuel had 2 sons, which we knew already from reading I Samuel, but here we learn more about them. Samuel's son Vashni was also called Joel.
Samuel (by Hannah)
Vashni/Joel (cf. verse 33)