Page subtitle or description or boat or owner information
For example "Header 1" is the highest level (ToC # 1) "Header 2" is the next level(ToC # 1.1) And so on,
1. Header 1 text
If this goes astray, don't worry about it, just get the important information, pictures, etc, in -- the headings can always be cleaned up later. Many times it's simpler to enter everything in "Paragraph" style and apply the Heading formats afterward.