The J2a-PF5197 main tree structure in 2023
Based on the ISOGG hierarchical sorting (see J2a1a1b1-PF5197) and the oldest defining subgroups M419 and YSC0000246>SK1396 this main subgroups tree is created – see TreeBranch PF5197 2023. Here the relevant structure for the PF5197 project: