There is a difference between my installation of v11 on my MacBook and my iMac. The MacBook correctly shows the identity of the spouse of a child when that field is included in the button data list, but it consistently shows the father's name on the iMac. I installed v11 on both machines from the same download at more or less the same time (a year or two ago), and cannot find any reason for the error on my iMac. Any ideas are welcome.