Abul Qasim Husayn ibn Ruh al-Nawbakhti
Abul Qasim Husayn ibn Ruh Nawbakhti( died 937 or 938 AD) was the third of the four deputies appointed by twelfth Shia Imam Muhammad al- Mahdi while he was in the Minor Occultation.
He was a native of Qum who migrated to Baghdad during the time of Uthman ibn Sa'id al- Asadi, the first deputy.
Al ‑ Nawbakhti was a companion of the second deputy Abu Jafar Muhammad ibn Uthman and became his agent for several years.
After the death of al- Nawbakhti, Abul Hasan Ali ibn Muhammad al- Samarri was appointed as the fourth deputy of Muhammad al- Mahdi.
Irene Baker
Edith Irene Bailey Baker( November 17, 1901 – April 2, 1994) was an American politician and a United States Representative from Tennessee.
She was the widow of Howard Baker Sr. and the stepmother of Howard Baker Jr.
Muhammad al-Mahdi as-Senussi
Muhammad Al Mahdi bin Sayyid Muhammad es Senussi, also Sayyid Muhammad ibn Muhammad ibn Muhammad al- Mahdi Ali al- Sanusi,( 1844 – 1902), was the supreme leader of the Senussi Order between 1859 and his death in 1902 in Libya.
Abu Jafar Muhammad ibn Uthman
Abu Jafar Muhammad ibn Uthman was the second of The Four Deputies after death of Uthman ibn Sa’id al- Asadi, his father and the first deputy, in Twelver Shia Islam, who appointed as the agent and deputy of the twelfth and final Imam, Muhammad al- Mahdi, while he was in the Minor Occultation.
He was Muhammad al- Mahdi's deputy until from 257 AH until his death in 304 or 305 AH.
He was appointed after the death of the first deputy.
Abul Qasim Husayn ibn Ruh al- Nawbakhti was appointed as the third deputy of Muhammad al- Mahdi after the death of Ibn Uthman.
Hasan al-Askari
Hasan ibn Ali al-Askari (846 – 874) was the 11th Imam of Twelver Shia Islam, after his father Ali al-Hadi.
He was also called Abu Muhammad and Ibn al-Ridha.
Because Samarra, the city where he lived, was a garrison town, he is generally known as al-Askari ("Askar" is the word for "military" in Arabic).
Al-Askari married Narjis Khatun (also recorded as Sawsan, Mariam) and was kept under house arrest or in prison for most of his life.
According to some Shia sources, he was poisoned at the age of 28 on the orders of the Abbasid caliph Al-Mu'tamid and was buried in Samarra.
It was known that many Shia were looking forward to the succession of his son, Hujjat-Allah al-Mahdi, as they believed him to be the twelfth Imam, who was destined to remove injustice from the world.
May Green Hinckley
May Green Hinckley( May 1, 1881 – May 2, 1943) was the third general president of the Primary of The Church of Jesus Christ of Latter- day Saints( LDS Church) from 1940 until her death.
She was the stepmother of Gordon B. Hinckley, fifteenth president of the LDS Church.
Jane Wigham
Jane Wigham( née Smeal; 1801–1888) was a leading Scottish abolitionist.
She was the stepmother of Eliza Wigham and the second wife of John Wigham.
Uthman ibn Sa'id al-Asadi
Uthman ibn Sa'id al- Asadi was the first of the four deputies in Twelver Shia Islam, who was appointed as an agent and deputy of Muhammad al- Mahdi while the latter was in the minor occultation( Minor Occultation refers to early years of Imamate of Muhammad al- Mahdi who disappeared and would only contact his followers through the Four Deputies.)
After ibn Sa'id's death, his son Abu Jafar Muhammad ibn Uthman was appointed as the second deputy by Muhammad al- Mahdi.
Hujjat-Allah al-Mahdi
Hujjat Allah ibn al-Hasan al-Mahdi , also known as Imam al-Mahdi  and Imām al-Zaman
(meaning "Imam of Our Time"), Hujjat ibn Hasan and Muhammad ibn Hasan ibn Ali or Muhammad ibn Hasan, is believed by Shia Twelver Muslims to be the Mahdi, an eschatological redeemer of Islam and ultimate savior of humankind and the final Imam of the Twelve Imams who will emerge with Isa (Jesus Christ) in order to fulfill their mission of bringing peace and justice to the world.
Twelver Shias believe that al-Mahdi was born on the 15th Sha'ban 879 CE/ 255AH and assumed Imamate at nearly 5 years of age following the killing of his father Hasan al-Askari.
In the early years of his Imamate, he is believed to have had contact with his followers only through The Four Deputies.
After a 69-year period, known as the Minor Occultation , a few days before the death of his fourth deputy Ali ibn Muhammad al-Samarri in 948, he is believed to have sent his followers a letter.
In that letter which was transmitted by al-Samarri he declared the beginning of Major Occultation , during which Mahdi is not in contact with his followers directly but has instructed them to follow the pious high clerics for whom he has mentioned some distinguishing merits.
Sunni Muslims reject that he is the Mahdi and believe that the Mahdi has not yet been born.
They believe his exact identity is only known to Allah, other than the idea that he is to be from the descendants of Muhammad.
Aside from the Mahdi's precise genealogy, Sunnis accept many of the same hadiths which Shias accept about the predictions regarding the Mahdi's emergence, his acts, and his universal Caliphate.
Sunnis also have many hadiths about Mahdi which are in their Hadith collections.
Dorothy Granger
Dorothy Karolyn Granger( November 21, 1911 – January 4, 1995) was an American actress best known for her roles in short subject comedies in Hollywood.
She was also the stepmother of film maker and former record producer Anthony J. Hilder.

Question: Who is Hujjat-Allah Al-Mahdi's mother?
Answer: Narjis