I don't understand the question. People will fill in a word doc and you want the header duplicated whenever there's a merger. Why do you want to duplicate the header and where do you want to put the copy? should it still be a header? Is the macro supposted to automatically run when there is a merger? across the next company? How will it know? And please explain what part the database of 1000 people plays in this.

Please try again. Please put yourself in the shoes of the reader of your post.