Delavan Family History
Delavan Name Meaning
French: variant of Delavant (and in North America an altered form of this) itself probably a variant of Delavaud a habitational name with fused preposition de ‘from’ for someone from Lavaud the name of several places in the westcentral part of France. This form of the surname has apparently died out in France.
Source: Dictionary of American Family Names 2nd edition, 2022