Read Descendancy
Read the descendancy of a person for a specific number of generations. The result of the query provides a list of persons. Each person will supply a descendancy number in the display properties for the person. The descendancy number is interpreted as a <a href="http://en.wikipedia.org/wiki/Genealogical_numbering_system#d.27Aboville_System">d'Aboville number</a> which can be used to determine the position of each person in the descendancy.
The descendancy query supports the inclusion of the spouses of each person in the descendancy graph. Spouses returned in the query will also have a descendancy number, but the descendancy number will have a -S<#> appended to indicate the role of spouse. The '#' indicates the spouse number.
<table> <tbody><tr> <th>descendancy number</th> <th>description</th> </tr> <tr> <td>1</td> <td>The root person.</td> </tr> <tr> <td>1-S1</td> <td>The (primary) spouse of the root person.</td> </tr> <tr> <td>1-S2</td> <td>The second spouse of the root person.</td> </tr> <tr> <td>1.3</td> <td>The third child (via the primary spouse) of the root person.</td> </tr> <tr> <td>1-S2.2</td> <td>The second child (via the second spouse) of the root person.</td> </tr> <tr> <td>1.2-S3.4</td> <td>The fourth child (via the 3rd spouse) of the second child (via the primary spouse) of the root person.</td> </tr> <tr> <td>1.2.5-S1</td> <td>The primary spouse of the fifth child (via the primary spouse) of the second child (via the primary spouse) of the root person.</td> </tr> </tbody></table>Query parameters
The ID of the person whose descendancy is being queried.
The number of generations being queried.
When the query parameter is supplied then additional person detail will be returned for each person in the descendancy.
When the query parameter is supplied then marriage details will be returned for each person in the descendancy.
Headers
Specifies the media type(s) that the client is willing to accept in the response.
Response
The read was successful. See <a href="https://developers.familysearch.org/main/docs/json-schema#person" target="_blank">Person Schema (JSON)</a>