To my knowledge, there is no book-length English biography of R. Meir Leib (Malbim) Weiser. R. Nosson Kamenetsky, in his The Making of a Godol, refers to the Malbim with last name Weiser. Yisrael Dubitsky confirmed for me that this was the Malbim's last name, or at least his father's last name, according to Noah Rosenblum. The following is an excerpt from his entry in Encyclopedia Judaica:MALBIM, MEIR LOEB BEN JEHIEL MICHAEL (1809–1879), rabbi, preacher, and biblical exegete. The name Malbim is an acronym formed from Meir Loeb ben Jehiel Michael. Born in Volochisk (Volhynia), Malbim was a child when his father died. He studied in his native town until the age of 13, with Moses Leib Horowitz, among others. He married at the age of 14, but after a short time divorced his wife. He went to Warsaw,...