1. A locator device for assisting with the mounting of a hinge, the locator device comprising: an elongated target support element having a target on each of its ends, wherein a length of the elongated target support element extends between the ends; and a locator element configured for interfacing with a hinge pin hole of the hinge, thereby locating the target support element relative to the hinge so that the targets are positioned on opposite sides of the hinge, wherein the target support element has a recessed region sized and shaped to fit between adjacent knuckles on a hinge, wherein the locator element is a post extending from the mid-point of the recessed region of the target support element and sized and shaped to be received within at least one pin hole of the hinge, wherein the recessed region has a substantially tapered width.