The two profiles for Robert Cobb (Cobbs-190 and Cobb-5048) have parents that also need to be merged first: father (Cobbs-20 and Cobb-5049) and mother (White-3147 and White-29763). When there a duplicate families on WikiTree it's really important to go as far back up the family line as there are duplicates, and to merge the oldest ones first. Then you move down the line merging the duplicates as you go. For each merge, the data (date & location of birth/marriage/death) will have to be agreed on. And in this case, there are two different spellings of the surname, one with and the other without the 's' at the end, so a decision has to be made about which surname to choose. All of the information in the 'text' box, the biography', for each of the profiles will appear on the combined profile. None of that is lost. Then after the merge, it's necessary to go back and remove any duplication of information in the biography.