Genealogy would seem most amenable to network visualization and analytics, until one realizes just how tangled up certain families can be…
Women in light red and men in light blue are connected to family units (grey) based on their type of connection (child, husband or wife). The use of a meta-node (family) reduces the visual clutter of one-to-many connections of father- or mother-to-child.
Note, however, that the reduction in one-to-many connections also reduces the efficacy of traditional social network analytics.