Addon:Consanguinity Gramplet

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Gramplet to show pedigree collapse and spousal consanguinity for the Active Person.

Usage

Fig. 1 Detached Consanguinity Gramps - Notebook mode

The Consanguinity gramplet is an add-on for the People views of Gramps. (When installed, this gramplet will be a sidebar/bottombar option for the following views: PeoplePeople, RelationshipsRelationships, ChartsCharts, and GeographyGeography.)

Select the Consanguinity menu option from the Gramplet selection menus after pressing the (Down Arrowhead button) in the view's sidebar or bottombar.

  • RadioButton Selected.png Single pane (default); a combined line of Active Person with spouse(s).
  • RadioButton Deselected.png Notebook; a tabbed view with each person separated. Shown in Figure 1.
  • Copy - copies the text of the window to the OS clipboard.
  • Display pedigrees - opens a tabbed window with ahnenlist numbered Ancestors. There will be a tab for each spouse

When detached (undocked), the floating dialog also has:

  • Help - which links to this webpage
  • Close - which closes the floating dialog by returning it to its dock

Example

The sample tree included with Gramps includes a few instances of Pedigree Collapse.

So to reproduce this diagram, import the example.gramps file to a new tree.

Gnome-important.png
Importing can create a mess!

Be careful that you do NOT import the example.gramps data into your own Family tree. Cleaning out the contamination of records related to thousands of fictitious people would be troublesome. Always double-check which tree is already loaded before importing a file.

Switch to the PeoplePeople View via the navigator bar. Find Piatt D. Warner and make him the Active Person. (By selecting that row.)

Switch to the RelationshipsRelationships View via the navigator bar. Add the Consanguinity gramplet to the view's sidebar as described in the Usage section above. Resize the width the sidebar so that the contents fit comfortably.

Fig. 2 Consanguinity diagram window (click a Relationship hotlink)
Fig. 3 Consanguinity pedigree window (click the Display pedigrees button)

Explore the common ancestry

Since Piatt D. Warner is the Active Person, the contents of the Consanguinity gramplet will be in the Single Pane mode (Figure 1 shows the Notebook mode where spouses are on separate pages) and look something like the following section. (Although the gramplet will have hotlinked People and Relationship.) The text below was created by clicking the Copy button and pasting it into this article.

Warner, Piatt D. (*9 Apr 1821, +11 Oct 1889)

Pedigree collapse for active person

Pedigree collapse at great grandparents:
	Warner, Edward (*6 Jan 1713, +27 Sep 1776)
	Anderson, Mary Molly (*1719, +20 Apr 1795)
	Relationship: second cousins once removed (down)
	Common ancestors:
		Christiansen, Edward (*1607, +1684)
		Thomas, Elizabeth (*1620, +1713)

Relationships between active person and partners

Partner: Fox, Julia Colville (*25 Dec 1823, +12 Feb 1904)
	Relationship: fifth cousins once removed (down)
	Common ancestors:
		Christiansen, Edward (*1607, +1684)
		Thomas, Elizabeth (*1620, +1713)
	Relationship: fifth cousins
	Common ancestors:
		Christiansen, Nathaniel (*15 May 1642, +21 Nov 1713)
		Grenier, Mary (*about 1638, +12 Jul 1703)

The hotlinks on the names of People will navigate the focus of Active Person selection to that person.

The Relationship diagram

Clicking the described Relationship will open a block diagram of that instance of pedigree collapse and how it relates to the Active Person.

In the example shown in Figure 1, Piatt Warner's great grandparents (Edward Warner and Mary Molly Anderson have the Relationship: second cousins once removed (down) who are descended from the common ancestors, Edward Christiansen and Elizabeth Thomas. Clicking that relationship description opens a basic chart (shown in Figure 2) of their common ancestors and Piatt's relationship through them.

The Pedigree list

Clicking the Display pedigrees button opens a tabbed window with list format of an ahnentafel numbering system pedigree. The other tab contains the similarly numbered pedigree of the Active Person's spouse(s) but starting with the spouse in the #1 spot for their list. These numbers Each list will only show a person once, regardless of how much pedigree collapse exists for the Person in the #1 spot on that pedigree.

Clicking the Copy button copies the text to the OS clipboard.

A text list is more actionable when sharing with family and other genealogists than a diagram. A diagram makes understanding the relationship easier. But a list can be transcribed into a form or another program more easily.

An example of Piatt's pedigree is shown in Figure 3. You will notice that the the lines for ancestors 152 and 153 are marked as being the same as ancestors 68 and 69 (Edward Christiansen and Elizabeth Thomas). This is where there is pedigree collapse for Piatt. The rest of the list will crop out the ancestors of 152 and 153 because they too are duplicated.

But which children were the siblings? Just divide the ancestor number by 2 to get the number of their child. Half of 152 is 76 (Nathanial Christiansen) and half of 68 is 34 (off-screen in Figure 3 but this is Joseph Christiansen). You can use this method in any Ahnentafel Numbering System. You can also use "deductive reckoning" determine their exact relationship to the #1 person by their number.

See also