It's basically the same as my answer to your duplicate question http://www.mathworks.com/matlabcentral/answers/110210#answer_118845. Did you look at that?
You use ismember() to extract only the blobs with those indexes from your original labeled image. Then you call regionprops() or any() or find() and min() to find the bounding box of all those. Something like (untested)
keeperIndexes = [15 76 87 99 102 177];
keeperBlobsImage = ismember(labeledImage, keeperIndexes);
% Find bounding box (one method to do it).
[rows, columns] = find(keeperBlobsImage);
topRow = min(rows(:));
bottomRow = max(rows(:));
leftCol = min(columns(:));
rightCol = max(columns(:));
