Saint John the Baptist baptized thousands of people, and also baptized Christ as an example to everyone that -everyone- should be baptized. The apostles DID baptize
huge groups of people as demonstrated here:
http://drbo.org/chapter/51002.htmSpecifically here:
Now when they had heard these things, they had compunction in their heart, and said to Peter, and to the rest of the apostles: What shall we do, men and brethren?
But Peter said to them: Do penance, and be baptized every one of you in the name of Jesus Christ, for the remission of your sins: and you shall receive the gift of the Holy Ghost. For the promise is to you, and to your children, and to all that are far off, whomsoever the Lord our God shall call. And with very many other words did he testify and exhort them, saying: Save yourselves from this perverse generation.
They therefore that received his word, were baptized; and there were added in that day about three thousand souls. And they were persevering in the doctrine of the apostles, and in the communication of the breaking of bread, and in prayers. And fear came upon every soul: many wonders also and signs were done by the apostles in Jerusalem, and there was great fear in all. And all they that believed, were together, and had all things common. Their possessions and goods they sold, and divided them to all, according as every one had need.
And here:
http://drbo.org/chapter/51010.htmNot to all the people, but to witnesses preordained by God, even to us, who did eat and drink with him after he arose again from the dead; And he commanded us to preach to the people, and to testify that it is he who was appointed by God, to be judge of the living and of the dead. To him all the prophets give testimony, that by his name all receive remission of sins, who believe in him. While Peter was yet speaking these words, the Holy Ghost fell on all them that heard the word. And the faithful of the circuмcision, who came with Peter, were astonished, for that the grace of the Holy Ghost was poured out upon the Gentiles also.
For they heard them speaking with tongues, and magnifying God. Then Peter answered: Can any man forbid water, that these should not be baptized, who have received the Holy Ghost, as well as we?
And he commanded them to be baptized in the name of the Lord Jesus Christ. Pay specific attention to this:
http://drbo.org/chapter/51019.htmAnd it came to pass, while Apollo was at Corinth, that Paul having passed through the upper coasts, came to Ephesus, and found certain disciples. And he said to them: Have you received the Holy Ghost since ye believed? But they said to him: We have not so much as heard whether there be a Holy Ghost. And he said: In what then were you baptized?
Who said: In John's baptism.
The disciples specifically stated that they were baptized "In John's baptism." What do you believe that means?