|Easton's Bible Dictionary|
(1.) One of Ishmael's twelve sons, and head of an Arab tribe (Genesis 25:13).
(2.) A son of Simeon (1 Chronicles 4:25).
Int. Standard Bible Encyclopedia
mib'-sam (mibhsam, "perfume"(?)):
(1) A son of Ishmael (Genesis 25:13 1 Chronicles 1:29).
(2) A Simeonite (1 Chronicles 4:25).
Mibsam (3 Occurrences)
Genesis 25:13 These are the names of the sons of Ishmael, by their names, according to the order of their birth: the firstborn of Ishmael, Nebaioth, then Kedar, Adbeel, Mibsam, (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
1 Chronicles 1:29 These are their generations: the firstborn of Ishmael, Nebaioth; then Kedar, and Adbeel, and Mibsam, (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
1 Chronicles 4:25 Shallum his son, Mibsam his son, Mishma his son. (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)