Daniel Sandler has no half brothers. He and his brothers Jason Aron and Marc are the 3 sons of Beverley Anne Sandler and Hedley Sandler.

Daniel Sandler has no half brothers, He and his older brother Jason Aron and his younger brother Marc are the 3 sons of Beverley Anne Sandler and Hedley Sandler

Henry,
those "half brothers" are most likely the result of a tree-merge that was not completed, i.e. you are seeing two copies of each of his brothers.