There is one box and it has a line going to the right that separates and leads to two separate boxes. Then each of those two boxes have a line that divides in two to two more boxes. So there are a total of seven boxes.
This Genealogy icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 5,700 icons, all in the same style and quality.