About the name Gustav
Gustav belongs to the Scandinavian tradition. Its roots are documented, even though its precise meaning is not recorded in the standard references — an honest gap we prefer to a confident guess.
In the United States, Gustav first appears in Social Security records in 1880. It climbed to its best-ever rank of #242 in 1883, and in 2024 35 babies received the name — 4,237 in total since 1880. Those are the official counts, not estimates.