David Block, 65, volunteer financial planner for wounded veterans
Block's concern for people with disabilities dates to his twenties, when his first wife died of multiple sclerosis.
After a 25-year career as a financial planner, Block started teaching budgeting to wounded warriors in San Diego. That led him to the nonprofit Homes for Our Troops, which builds free houses for injured veterans.
Block shows recipients -- often young and untrained in managing money -- how to live within their means. One recent project: helping a veteran who lost both legs devise a spending plan for building a swimming pool for physical therapy without taking on debt.
"Many wounded warriors don't realize the money they get for their injuries isn't enough for a good life."
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