Folks were raised from the dead both before and after Jesus.
A good point I have considered.
I tried to find instances of folks being raised from the dead
BEFORE Jesus died.
1 Kings 17:19-22 KJV
(19) And he said unto her, Give me thy son. And he took him out of her bosom, and carried him up into a loft, where he abode, and laid him upon his own bed.
(20) And he cried unto the LORD, and said, O LORD my God, hast thou also brought evil upon the widow with whom I sojourn, by slaying her son?
(21) And he stretched himself upon the child three times, and cried unto the LORD, and said, O LORD my God, I pray thee, let this child's soul come into him again.
(22) And the LORD heard the voice of Elijah; and the soul of the child came into him again, and he revived.
2 Kings 4:32-37 KJV
(32) And when Elisha was come into the house, behold, the child was dead, and laid upon his bed.
(33) He went in therefore, and shut the door upon them twain, and prayed unto the LORD.
(34) And he went up, and lay upon the child, and put his mouth upon his mouth, and his eyes upon his eyes, and his hands upon his hands: and he stretched himself upon the child; and the flesh of the child waxed warm.
(35) Then he returned, and walked in the house to and fro; and went up, and stretched himself upon him: and the child sneezed seven times, and the child opened his eyes.
(36) And he called Gehazi, and said, Call this Shunammite. So he called her. And when she was come in unto him, he said, Take up thy son.
(37) Then she went in, and fell at his feet, and bowed herself to the ground, and took up her son, and went out.
2 Kings 13:20-21 KJV
(20) And Elisha died, and they buried him. And the bands of the Moabites invaded the land at the coming in of the year.
(21) And it came to pass, as they were burying a man, that, behold, they spied a band of men; and they cast the man into the sepulchre of Elisha: and when the man was let down, and touched the bones of Elisha, he revived, and stood up on his feet.
Luke 7:12-15 KJV
(12) Now when he came nigh to the gate of the city, behold, there was a dead man carried out, the only son of his mother, and she was a widow: and much people of the city was with her.
(13) And when the Lord saw her, he had compassion on her, and said unto her, Weep not.
(14) And he came and touched the bier: and they that bare him stood still. And he said, Young man, I say unto thee, Arise.
(15) And he that was dead sat up, and began to speak. And he delivered him to his mother.
Luke 8:49-55 KJV
(49) While he yet spake, there cometh one from the ruler of the synagogue's house, saying to him, Thy daughter is dead; trouble not the Master.
(50) But when Jesus heard it, he answered him, saying, Fear not: believe only, and she shall be made whole.
(51) And when he came into the house, he suffered no man to go in, save Peter, and James, and John, and the father and the mother of the maiden.
(52) And all wept, and bewailed her: but he said, Weep not; she is not dead, but sleepeth.
(53) And they laughed him to scorn, knowing that she was dead.
(54) And he put them all out, and took her by the hand, and called, saying, Maid, arise.
(55) And her spirit came again, and she arose straightway: and he commanded to give her meat.
John 11:43-44 KJV
(43) And when he thus had spoken, he cried with a loud voice, Lazarus, come forth.
(44) And he that was dead came forth, bound hand and foot with graveclothes: and his face was bound about with a napkin. Jesus saith unto them, Loose him, and let him go.
All seem to have been raised back to life within a very short time of their death.
And there were others raised AFTER the death of Jesus.
The saints we are discussing in the OP.
Plus Dorcus being raised by Peter. (Acts 9:37-41)
Plus Eutychus being raised by Paul. (Acts 20:9-12)
Which also seem to be raised within a very short time of their death.