Ahmad Dahlan The genealogy is Maulana Malik Ibrahim, Maulana Ishaq, Maulana 'Ainul Yaqin, Maulana Muhammad Fadlullah (Sunan Prapen), Maulana Sulaiman Ki Ageng Gribig (Djatinom), Demat Djurung Djuru Sapisan, Demat Djurung Djuru Kapindo, Kyai Ilyas, Kyai Murtadla, KH. Muhammad Sulaiman, KH. Abu Bakr and Muhammad Darwisy (Ahmad Dahlan). Hashim Asyari. In 1912, he founded the village Kauman Muhammadiyah in Yogyakarta.
From his marriage to Siti Walidah, KH. Ahmad Dahlan had six children, namely Djohanah, Siradj Dahlan, Siti Busyro, Irfan Dahlan, Siti Aishah, Siti Zaharah.  In addition, KH. Ahmad Dahlan Nyai Abdullah had also married, widow of H. Abdullah. He also never married Nyai Rum, sister Kyai Munawwir Krapyak. KH. Ahmad Dahlan also has a son from his marriage to Aisha Nyai (Adjengan prince's sister) named Dandanah Cianjur. He had also married to Yasin Pakualaman Nyai Yogyakarta.
As someone who is active in community activities and have brilliant ideas, Dahlan also easily accepted and respected in the community, so he also quickly gain a place in the organization Jam'iyatul Khair, Budi Utomo, Syarikat Comite Defenders of Islam and the Prophet Kanjeng Muhammad SAW.
In 1912, Ahmad Dahlan founded Muhammadiyah organization was to carry out the ideals of renewal of Islam in the archipelago. Ahmad Dahlan want to organize a reform in the way of thinking and work under the guidance of Islam. He would like to invite Indonesia to return Muslims to live according to the guidance of the Qur'an and al-Hadith. This society stands coincide on November 18, 1912. And since the beginning of Dahlan has determined that the Muhammadiyah is not a political organization but a social nature and working in the field of education.
The idea of establishment of Muhammadiyah by Ahmad Dahlan also get resistance, both from families and from the surrounding community. It was Ahmad Dahlan was teaching Islam in schools OSVIA Magelang, which is a special school for children Dutch gentry.
On December 20, 1912, Ahmad Dahlan appealed to the Government of the Netherlands East Indies to obtain legal entityLetter. 81 dated August 22, 1914From the Dutch East Indies government will arise concerns the development of this organization. Ahmad Dahlan around this by suggesting that outside Yogyakarta Muhammadiyah branch using a different name. For example Nurul Islam in Pekalongan, Al-Munir in Ujung Pandang, Ahmadi  on the Main Page. While in Solo standing association Sidiq Amanah Fathonah Tabligh (SATF) that gets the leadership of Muhammadiyah branch. Various associations and the congregation is getting guidance from Muhammadiyah, such as is-Muslim Brotherhood,  Taqwimuddin, Light Young, Hambudi-Holy, Khayatul Qulub, Priya President, Islamic Council, Thaharatul Qulub, Thaharatul-Aba, ta'awanu alal Birri, Ta'ruf bima Kanu wal-Fajri, Wal-Ashri, Jamiyatul Muslims, Syahratul Mubtadi. Dahlan also friendly and dialogue with other religious figures such as Father van Lith in 1914-1918. Muhammadiyah increasingly grown almost all over Indonesia. Therefore, on May 7, 1921 Dahlan appealed to the Dutch Government to establish Muhammadiyah branches all over Indonesia. This request was granted by the Dutch Government on 2 September 1921.
As a democratic movement in carrying out missionary activities of Muhammadiyah, Dahlan also facilitates the Muhammadiyah members to the process of job evaluation and selection of leaders in Muhammadiyah. KH. Ahmad Dahlan was buried in KarangKajen, Yogyakarta.