Q. I’m a 79-year-old single federal retiree in CSRS. If I marry a woman 10 years younger, what percentage of my retirement will she receive when I die? I also am a military retiree with Medicare and Tricare for Life, so I wouldn’t need the civilian health insurance. A. As a CSRS retiree, you could elect any amount of annuity for your spouse, from $1 a year to 55 percent of your annuity. To pay for it, there would be two reductions in your annuity. The first would be the standard reduction to provide for the survivor benefit. The second…