Gramps
Genealogical research program
Gramps is a genealogy program that is both intuitive for hobbyists and feature-complete for professional genealogists.
It gives you the ability to record the many details of the life of an individual as well as the complex relationships between various people, places and events.
All of your research is kept organized, searchable and as precise as you need it to be.
Gramps is an Open Source genealogy program written in Python, using the GTK/GNOME interface. It is an extremely flexible program fitting the needs for both the amateur genealogist and serious genealogical researcher. Gramps has the ability to import GEDCOM files exported from many proprietary genealogy programs and can produce a large number of reports in many popular formats.
How to install Gramps in Ubuntu
If you are on a supported distro, you can install the application through software center by clicking the below link.
If the above link not working, run the below command in terminal to install gramps in Ubuntu
sudo apt install gramps
Gramps Screenshots