Using data from the Federal Reserve Board's Surveys of Consumer Finances (SCFs), we follow one segment of a cohort over its life cyclemarried couples as the husband ages from 3644 in 1989 to 5159 in 2004. We find that middle-income and lower-middle-income married-couple households experienced modest income growth but rapid growth in net worth. Overall, the evidence documents significant gains in income and wealth as married couples aged from their late 30s to their 50s.