Maximum parsimony genealogies using SeqTrack Outbreak genetic data are typically characterized by low genetic diversity, implying that descendents differ from their ancestors by very few mutations. When recombination and reverse mutations are unlikely, the most plausible genealogy is the one involving the fewest mutational steps. Such maximum parsimony genealogies can be recovered by SeqTrack by weighting edges according to the number of mutations between pairs of isolates, and seeking the branching of minimum weight. The resulting ancestry path connects all the sampled isolates while minimizing the required number of mutational steps, and respecting their temporal ordering.