The married astronauts in question were Mark C. Lee and N. Jan Davis.
There's a picture of the happy couple at:
http://www.ksc.nasa.gov/mirrors/images/images/pao/STS47/10064932.htm
A photograph of them having sex in the cramped Space Shuttle is available
at:
http://www.ksc.nasa.gov/mirrors/images/images/pao/STS47/10064934.htm
BM