The size of finger prints (as indexed by ride-count and pattern type) are among the most highly heritable traits measured in humans. The traits are easy to measure and remain stable across the lifespan making them ideal for genome-wide association and a model trait in human genetics. Our collaborators at the Queensland Institute of Medical Research have identified a number of genetic variants influencing these traits. Given the small amount of data available in ALSPAC on ridge pattern (i.e. ~1000 individuals), we were hoping to use ALSPAC as a replication cohort using in silico GWAS data.