Fortunately for them, people did take pictures, or otherwise the wonderous history of these peoples and their culture would now sadly be virtually non-existent. Additionally, other descendants of these documented individuals would seem to have a fundamentally equal right to any and all such information about their relatives. Heraldry organizations around the world have long preyed upon the use of a select few personal heraldric devices as a source of income, when frankly these devices were and are considered individuals personal property from ancient times. We all collectively own our families history, lineage, imagery, and national songs. I do not recall any point where we relinquished our rights to them so that any one selfish individual could use them exclusively for their personal financial gain.
Life's to short to waste on such petty issues as what bit of data belongs to whom.
From my perspective, I hope that any and all information I have researched and compiled to date, and will undoubtedly compile in the future is copied a million times over. In that way I will have some assurance that it will be eternally preserved for posterity, and will never be lost to my kinsmen or my descendants again.