Stars defenseman Jamie Oleksiak is finally having his N.H.L. moment. A first-round pick in 2011, the 6-foot-7 Oleksiak has earned a regular spot in the Dallas lineup and is expected to establish new career highs in most statistical categories, even after missing a month because of a hand injury.
But inevitably he will still be asked about his 16-year-old sister, Penny, a swimmer who won four Olympic medals for Canada in Rio de Janeiro last summer.