1899: https://www.delpher.nl/nl/kranten/view?coll=ddd&query=Koekebakker&cql%5B%5D=%28date+_gte_+%2201-08-1899%22%29&cql%5B%5D=%28date+_lte_+%2231-08-1899%22%29&redirect=true&sortfield=date&identifier=MMKB19:000035112:mpeg21:a00009&resultsidentifier=MMKB19:000035112:mpeg21:a00009&rowid=6
1902: https://www.delpher.nl/nl/kranten/view?coll=ddd&query=%28%22A.+Koekebakker%22+Groningen%29&cql%5B%5D=%28date+_gte_+%2201-01-1895%22%29&cql%5B%5D=%28date+_lte_+%2201-01-1920%22%29&redirect=true&sortfield=datedesc&page=3&identifier=ddd:010890508:mpeg21:a0032&resultsidentifier=ddd:010890508:mpeg21:a0032&rowid=6
1903: https://www.delpher.nl/nl/kranten/view?coll=ddd&query=%28%22A.+Koekebakker%22+Groningen%29&cql%5B%5D=%28date+_gte_+%2201-01-1895%22%29&cql%5B%5D=%28date+_lte_+%2201-01-1920%22%29&redirect=true&sortfield=datedesc&page=3&identifier=ddd:010890748:mpeg21:a0155&resultsidentifier=ddd:010890748:mpeg21:a0155&rowid=2
1897: https://www.delpher.nl/nl/kranten/view?cql%5B%5D=%28date+_gte_+%2201-01-1850%22%29&cql%5B%5D=%28date+_lte_+%2231-12-1950%22%29&query=%28%22Mej.+A.+Koekebakker%22+Groningen%29&coll=ddd&redirect=true&page=1&sortfield=date&identifier=ddd:110540586:mpeg21:a0053&resultsidentifier=ddd:110540586:mpeg21:a0053&rowid=1
1898: https://www.delpher.nl/nl/kranten/view?coll=ddd&query=%28%22A.+Koekebakker%22+Groningen%29&cql%5B%5D=%28date+_gte_+%2201-01-1895%22%29&cql%5B%5D=%28date+_lte_+%2201-01-1920%22%29&redirect=true&sortfield=datedesc&page=5&identifier=MMRAZ02:000346026:mpeg21:a00033&resultsidentifier=MMRAZ02:000346026:mpeg21:a00033&rowid=9
https://www.delpher.nl/nl/kranten/view?coll=ddd&query=%28%22Mej.+A.+Koekebakker%22+Groningen+schaak%29&cql%5B%5D=%28date+_gte_+%2201-01-1850%22%29&cql%5B%5D=%28date+_lte_+%2231-12-1950%22%29&redirect=true&sortfield=datedesc&identifier=MMRAZ02:000346026:mpeg21:a00033&resultsidentifier=MMRAZ02:000346026:mpeg21:a00033&rowid=1
1898: https://www.delpher.nl/nl/kranten/view?coll=ddd&query=%22A.+Koekebakker%22&cql%5B%5D=%28date+_gte_+%2201-01-1897%22%29&cql%5B%5D=%28date+_lte_+%2231-12-1897%22%29&redirect=true&sortfield=datedesc&identifier=ddd:110540586:mpeg21:a0053&resultsidentifier=ddd:110540586:mpeg21:a0053&rowid=2
1899: https://www.delpher.nl/nl/kranten/view?coll=ddd&query=%28%22A.+Koekebakker%22+Groningen%29&cql%5B%5D=%28date+_gte_+%2201-01-1895%22%29&cql%5B%5D=%28date+_lte_+%2201-01-1920%22%29&redirect=true&sortfield=datedesc&page=5&identifier=ddd:010595645:mpeg21:a0003&resultsidentifier=ddd:010595645:mpeg21:a0003&rowid=6
1900: https://www.delpher.nl/nl/kranten/view?coll=ddd&query=%28%22A.+Koekebakker%22+Groningen%29&cql%5B%5D=%28date+_gte_+%2201-01-1895%22%29&cql%5B%5D=%28date+_lte_+%2201-01-1920%22%29&redirect=true&sortfield=datedesc&page=4&identifier=ddd:010163807:mpeg21:a0006&resultsidentifier=ddd:010163807:mpeg21:a0006&rowid=5
1900: https://www.delpher.nl/nl/kranten/view?coll=ddd&query=%28%22A.+Koekebakker%22+Groningen%29&cql%5B%5D=%28date+_gte_+%2201-01-1895%22%29&cql%5B%5D=%28date+_lte_+%2201-01-1920%22%29&redirect=true&sortfield=datedesc&page=4&identifier=MMRAZ02:000360033:mpeg21:a00008&resultsidentifier=MMRAZ02:000360033:mpeg21:a00008&rowid=9
