Checked for children born to Oscar and Agnes in Tunisia. They are as follows:
Charles Spiridon b. 1924 Gafsa, record 33
Helene b. 1926 Gafsa, record 20
Lucie b. 1929, Redeyef, record 19
Georgette b. 1931, Metalaoui, record 43
You can write to the Catholic Prelature if Tunis for copies of the birth/baptism.