The url's within genlias do not work. It seems that The father of Johannes Bussema, born November 22, 1839 is not known. The not recognization by his mother means that she did not have to agree with his marriage under the age of 30. See the papers that were delivered at his marriage at https://familysearch.org/pal:/MM9.3.1/TH-1-15738-11368-37?cc... Image 1625 shows that he did not serve in the conscription and that his father unknown is. Image 1626 shows that she recognized him on December 22, 1864 in Amsterdam and that it is registered on January 20,1865 in register 1 page 79. See attachment. His birth was never registered before.